POSC399 Treatment Effect and Costs of the Complete Therapeutic Pathway in Patients with First-Line Castration-Resistant Prostate Cancer with Either First-Line Docetaxel or Abiraterone Acetate Plus Prednisone

Autor: MS Holleman, I Santi, S Huygens, KKH Aben, ACM Van den Bergh, AM Bergman, AJM van den Eertwegh, MCP Kuppen, J Lavalaye, NM Mehra, RJA van Moorselaar, IM Van Oort, DM Somford, HM Westgeest, WR Gerritsen, CA Uyl-De Groot

Publikováno v: Value in Health. 25:S266-S267

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3846a39e27fe91586f32b70b4873acf
https://doi.org/10.1016/j.jval.2021.11.1300

POSC365 Health State Utilities of Advanced Melanoma Patients Treated in Clinical Practice in the Era of Novel Immuno- and Targeted Therapies

Autor: M Franken, S de Groot, A van Dongen, B Leeneman, CA Uyl-De Groot, MJB Aarts, FWPJ van den Berkmortel, CU Blank, MJ Boers-Sonderen, AJM van den Eertwegh, JWB de Groot, JBAG Haanen, GAP Hospers, E Kapiteijn, OJ van Not, D Piersma, RS van Rijn, MAM Stevense-den Boer, KPM Suijkerbuijk, AAM van der Veldt, G Vreugdenhil, MWJM Wouters, M Versteegh, HM Blommestein

Publikováno v: Value in Health. 25:S243-S244

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7fa0d23c0ccad3dded9f088b503f6b3d
https://doi.org/10.1016/j.jval.2021.11.1190

POSC366 Validity of the EQ-5D-3L and EQ-5D-5L in Advanced Melanoma

Autor: M Franken, A van Dongen, B Leeneman, CA Uyl-De Groot, MJB Aarts, FWPJ van den Berkmortel, CU Blank, MJ Boers-Sonderen, AJM van den Eertwegh, JWB de Groot, JBAG Haanen, GAP Hospers, E Kapiteijn, MM de Meza, D Piersma, RS van Rijn, MAM Stevense-den Boer, KPM Suijkerbuijk, AAM van der Veldt, G Vreugdenhil, MWJM Wouters, HM Blommestein, M Versteegh

Publikováno v: Value in Health. 25:S244

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1cb44505452289d62a73af32c48d12fc
https://doi.org/10.1016/j.jval.2021.11.1191

Neoadjuvant Nivolumab and Ipilimumab in Resectable Stage III Melanoma.

Autor: Blank CU; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Lucas MW; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Scolyer RA; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van de Wiel BA; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Menzies AM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Lopez-Yurda M; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Hoeijmakers LL; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Saw RPM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Lijnsvelt JM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Maher NG; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Pulleman SM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Gonzalez M; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Torres Acosta A; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van Houdt WJ; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Lo SN; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Kuijpers AMJ; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Spillane A; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Klop WMC; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Pennington TE; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Zuur CL; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Shannon KF; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Seinstra BA; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Rawson RV; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Haanen JBAG; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Ch'ng S; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Naipal KAT; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Stretch J; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van Thienen JV; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Rtshiladze MA; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Wilgenhof S; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Kapoor R; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Meerveld-Eggink A; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Grijpink-Ongering LG; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van Akkooi ACJ; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Reijers ILM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Gyorki DE; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Grünhagen DJ; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Speetjens FM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Vliek SB; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Placzke J; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Spain L; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Stassen RC; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Amini-Adle M; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Lebbé C; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Faries MB; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Robert C; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Ascierto PA; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van Rijn R; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van den Berkmortel FWPJ; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Piersma D; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van der Westhuizen A; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Vreugdenhil G; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Aarts MJB; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Stevense-den Boer MAM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Atkinson V; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Khattak M; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Andrews MC; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van den Eertwegh AJM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Boers-Sonderen MJ; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Hospers GAP; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Carlino MS; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., de Groot JB; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Kapiteijn E; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Suijkerbuijk KPM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Rutkowski P; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Sandhu S; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., van der Veldt AAM; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.)., Long GV; From the Departments of Medical Oncology (C.U.B., M.W.L., L.L.H., J.M.L., S.M.P., J.B.A.G.H., K.A.T.N., J.V.T., S.W., A.M.-E., I.L.M.R.), Pathology (B.A.W.), Biometrics (M.L.-Y., A.T.A., L.G.G.-O.), Surgical Oncology (W.J.H., A.M.J.K., A.C.J.A.), Head and Neck Surgery (W.M.C.K., C.L.Z.), Radiology (B.A.S.), and Molecular Oncology and Immunology (J.B.A.G.H.), Netherlands Cancer Institute, and the Department of Medical Oncology, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Cancer Center Amsterdam (A.J.M.E.), Amsterdam, the Departments of Medical Oncology (C.U.B., J.B.A.G.H., F.M.S., E.K.) and Otorhinolaryngology Head and Neck Surgery (C.L.Z.), Leiden University Medical Center, Leiden, the Departments of Medical Oncology (K.A.T.N., R.C.S., A.A.M.V.), Surgical Oncology (D.J.G., R.C.S.), and Radiology and Nuclear Medicine (A.A.M.V.), Erasmus Medical Center, Rotterdam, the Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht (S.B.V., K.P.M.S.), the Department of Medical Oncology, Medical Center Leeuwarden, Leeuwarden (R.R.), the Department of Medical Oncology, Zuyderland Medical Center, Sittard-Geleen (F.W.P.J.B.), the Department of Medical Oncology, Medisch Spectrum Twente, Enschede (D.P.), the Department of Medical Oncology, Maxima Medical Center, Veldhoven (G.V.), the Department of Medical Oncology, Maastricht University Medical Center, GROW School for Oncology and Developmental Biology, Maastricht (M.J.B.A.), the Department of Medical Oncology, Amphia Hospital, Breda (M.A.M.S.B.), the Department of Medical Oncology, Radboud University Medical Center, Nijmegen (M.J.B.-S.), the Department of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen (G.A.P.H.), and Isala Oncology Center, Isala Hospital, Zwolle (J.-W.B.G.) - all in the Netherlands; the Department of Hematology and Medical Oncology, University Clinic Regensburg, Regensburg, Germany (C.U.B.); Melanoma Institute Australia (R.A.S., A.M.M., R.P.M.S., N.G.M., M.G., S.N.L., A.S., T.E.P., K.F.S., R.V.R., S.C., J.S., M.A.R., A.C.J.A., M.S.C., G.V.L.), the Faculty of Medicine and Health (R.A.S., A.M.M., R.P.M.S., N.G.M., S.N.L., A.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A., G.V.L.), and Charles Perkins Centre (R.A.S., G.V.L.), University of Sydney, the Departments of Tissue Pathology and Diagnostic Oncology (R.A.S., R.V.R.) and Melanoma and Surgical Oncology (R.P.M.S., T.E.P., K.F.S., S.C., J.S., M.A.R., A.C.J.A.), Royal Prince Alfred Hospital, NSW Health Pathology (R.A.S., R.V.R.), the Departments of Medical Oncology (A.M.M., G.V.L.) and Breast and Melanoma Surgery (A.S.), Royal North Shore and Mater Hospitals, and the Department of Radiology, Mater Hospital (R.K.), Sydney, Royal Prince Alfred Hospital, Institute of Academic Surgery, Camperdown, NSW (A.C.J.A.), the Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC (D.E.G.), the Department of Medical Oncology, Peter MacCallum Cancer Centre, East Melbourne, VIC (L.S., S.S.), Lake Macquarie Oncology, Lake Macquarie Private Hospital, the Department of Medical Oncology, Calvary Mater Hospital, and the Department of Medicine, School of Medicine and Public Health, University of Newcastle, Newcastle, NSW (A.W.), the Department of Medical Oncology, Princess Alexandra Hospital, University of Queensland, Brisbane (V.A.), the Department of Medical Oncology, Fiona Stanley Hospital, Perth, WA (M.K.), the Department of Medical Oncology, Alfred Health, Melbourne, and the Department of Medicine, School of Translational Medicine, Monash University, Melbourne, VIC (M.C.A.), and the Department of Medical Oncology, Westmead Hospital and Blacktown, Sydney (M.S.C.) - all in Australia; the Melanoma Clinic, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (J.B.A.G.H.); the Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland (J.P., P.R.); the Department of Medical Oncology, Centre Léon Bérard, Lyon (M.A.-A.), Université Paris Cité, Assistance Publique-Hôpitaux de Paris (AP-HP) Dermato-Oncology and Clinical Investigation Center, Cancer Institute AP-HP, Nord Paris Cité, INSERM Unité 976, Saint Louis Hospital, Paris (C.L.), and the Department of Medical Oncology, Gustave Roussy and Paris-Saclay University, Villejuif (C.R.) - all in France; the Department of Surgical Oncology, Angeles Clinic and Research Institute, Los Angeles (M.B.F.); and the Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, Naples, Italy (P.A.A.).

Publikováno v: The New England journal of medicine [N Engl J Med] 2024 Nov 07; Vol. 391 (18), pp. 1696-1708. Date of Electronic Publication: 2024 Jun 02.

Adjuvant treatment with anti-PD-1 in acral melanoma: A nationwide study.

Autor: Bloem M; Scientific Bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands.; Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, The Netherlands.; Department of Surgical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands., van Not OJ; Scientific Bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands.; Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands., Aarts MJB; Department of Medical Oncology, GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, The Netherlands., van den Berkmortel FWPJ; Department of Medical Oncology, Zuyderland Medical Centre Sittard, Sittard-Geleen, The Netherlands., Blank CU; Department of Medical Oncology and Immunology, Netherlands Cancer Institute, Amsterdam, The Netherlands., Blokx WAM; Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands., Boers-Sonderen MJ; Department of Medical Oncology, Radboud University Medical Centre, Nijmegen, The Netherlands., Bonenkamp JJ; Department of Surgery, Radboud University Medical Centre, Nijmegen, The Netherlands., de Groot JB; Isala Oncology Center, Zwolle, The Netherlands., Haanen JB; Department of Medical Oncology and Immunology, Netherlands Cancer Institute, Amsterdam, The Netherlands., Hospers GAP; Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands., Kapiteijn EW; Department of Medical Oncology, Leiden University Medical Centre, Leiden, The Netherlands., de Meza MM; Scientific Bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands.; Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, The Netherlands.; Department of Surgical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands., Piersma D; Department of Internal Medicine, Medisch Spectrum Twente, Enschede, The Netherlands., van Rijn RS; Department of Internal Medicine, Medical Centre Leeuwarden, Leeuwarden, The Netherlands., Stevense-den Boer MAM; Department of Internal Medicine, Amphia Hospital, Breda, The Netherlands., van der Veldt AAM; Department of Medical Oncology, Erasmus Medical Centre, Rotterdam, The Netherlands.; Department of Radiology and Nuclear Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands., Vreugdenhil G; Department of Internal Medicine, Maxima Medical Centre, Eindhoven, The Netherlands., van den Eertwegh AJM; Department of Medical Oncology, Amsterdam UMC, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands., Suijkerbuijk KPM; Department of Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands., Wouters MWJM; Scientific Bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands.; Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, The Netherlands.; Department of Surgical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands.

Publikováno v: International journal of cancer [Int J Cancer] 2024 Oct 15; Vol. 155 (8), pp. 1455-1465. Date of Electronic Publication: 2024 Jun 24.