The association of the room air challenge with long-term outcomes in extremely preterm infants.

Autor: Aleem S; Department of Pediatrics, Duke University, Durham, NC, USA. samia.aleem@duke.edu., Do BT; Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, Durham, NC, USA., Gantz MG; Social, Statistical and Environmental Sciences Unit, RTI International, Research Triangle Park, Durham, NC, USA., Hibbs AM; Department of Pediatrics, Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, OH, USA., Jensen EA; Division of Neonatology, Department of Pediatrics, Children's Hospital of Philadelphia and University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA., Cotten CM; Department of Pediatrics, Duke University, Durham, NC, USA., Malcolm WF; Department of Pediatrics, Duke University, Durham, NC, USA., Jobe AH; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA., Greenberg RG; Department of Pediatrics, Duke University, Durham, NC, USA.; Duke Clinical Research Institute, Durham, NC, USA.

Publikováno v: Journal of perinatology : official journal of the California Perinatal Association [J Perinatol] 2024 Sep; Vol. 44 (9), pp. 1300-1306. Date of Electronic Publication: 2024 Aug 03.

Neurodevelopmental Outcomes of Extremely Preterm Infants Fed Donor Milk or Preterm Infant Formula: A Randomized Clinical Trial.

Autor: Colaizy TT; Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City., Poindexter BB; Department of Pediatrics, Children's Healthcare of Atlanta, School of Medicine, Emory University, Atlanta, Georgia., McDonald SA; Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina., Bell EF; Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City., Carlo WA; Division of Neonatology, Heersink School of Medicine, University of Alabama, Birmingham., Carlson SJ; Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City., DeMauro SB; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia., Kennedy KA; Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center, Houston., Nelin LD; Department of Pediatrics, Nationwide Children's Hospital, College of Medicine, Ohio State University, Columbus., Sánchez PJ; Department of Pediatrics, Nationwide Children's Hospital, College of Medicine, Ohio State University, Columbus., Vohr BR; Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, Rhode Island., Johnson KJ; Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City., Herron DE; Department of Pediatrics, School of Medicine, Indiana University, Indianapolis., Das A; Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville, Maryland., Crawford MM; Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville, Maryland., Walsh MC; Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland., Higgins RD; Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.; College of Health and Human Services, George Mason University, Fairfax, Virginia., Stoll BJ; Department of Pediatrics, Children's Healthcare of Atlanta, School of Medicine, Emory University, Atlanta, Georgia.; Department of Pediatrics, McGovern Medical School, University of Texas Health Science Center, Houston., Ambalavanan N; Division of Neonatology, Heersink School of Medicine, University of Alabama, Birmingham., Wyckoff MH; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas., D'Angio CT; University of Rochester School of Medicine and Dentistry, Rochester, New York., Bugg GW; Department of Pediatrics, Children's Healthcare of Atlanta, School of Medicine, Emory University, Atlanta, Georgia., Ohls RK; University of New Mexico Health Sciences Center, Albuquerque.; Department of Pediatrics, Division of Neonatology, School of Medicine, University of Utah, Salt Lake City., Reynolds AM; Department of Pediatrics, Oishei Children's Hospital, University at Buffalo, Buffalo, New York., Sokol GM; Department of Pediatrics, School of Medicine, Indiana University, Indianapolis., Laptook AR; Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, Rhode Island., Olsen SL; Department of Pediatrics, Children's Mercy Hospital, Kansas City, Missouri., White JR; Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls., Jadcherla SR; Department of Pediatrics, Nationwide Children's Hospital, College of Medicine, Ohio State University, Columbus., Bajaj M; Department of Pediatrics, School of Medicine, Wayne State University, Detroit, Michigan., Parimi PS; Department of Pediatrics, Kansas University Medical Center, Kansas City., Schmidt B; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia., Laughon MM; Division of Neonatal-Perinatal Medicine, Department of Pediatrics, School of Medicine, University of North Carolina, Chapel Hill., Barks J; Department of Neonatal-Perinatal Medicine, C. S. Mott Children's Hospital, University of Michigan, Ann Arbor., Fisher KA; Department of Pediatrics, School of Medicine, Duke University, Durham, North Carolina., Hibbs AM; Department of Pediatrics, University Hospitals Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, Ohio., Peralta-Carcelen M; Division of Neonatology, Heersink School of Medicine, University of Alabama, Birmingham., Cook N; Department of Pediatrics, Pennsylvania Hospital, Philadelphia., Heyne RJ; Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas., Cavanaugh B; University of Rochester School of Medicine and Dentistry, Rochester, New York., Adams-Chapman I; Department of Pediatrics, Children's Healthcare of Atlanta, School of Medicine, Emory University, Atlanta, Georgia., Fuller J; University of New Mexico Health Sciences Center, Albuquerque., Hartley-McAndrew ME; Department of Pediatrics, Oishei Children's Hospital, University at Buffalo, Buffalo, New York., Harmon HM; Stead Family Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City., Duncan AF; Children's Hospital of Philadelphia and University of Pennsylvania, Philadelphia., Hines AC; Department of Pediatrics, School of Medicine, Indiana University, Indianapolis., Kilbride HW; Department of Pediatrics, Children's Mercy Hospital, Kansas City, Missouri., Richards LA; Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls., Maitre NL; Department of Pediatrics, Nationwide Children's Hospital, College of Medicine, Ohio State University, Columbus., Natarajan G; Department of Pediatrics, School of Medicine, Wayne State University, Detroit, Michigan., Trembath AN; Division of Neonatal-Perinatal Medicine, Department of Pediatrics, School of Medicine, University of North Carolina, Chapel Hill., Carlson MD; Department of Neonatal-Perinatal Medicine, C. S. Mott Children's Hospital, University of Michigan, Ann Arbor., Malcolm WF; Department of Pediatrics, School of Medicine, Duke University, Durham, North Carolina., Wilson-Costello DE; Department of Pediatrics, University Hospitals Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, Ohio.

Publikováno v: JAMA [JAMA] 2024 Feb 20; Vol. 331 (7), pp. 582-591.

Quality of life burden on United States infants and caregivers due to lower respiratory tract infection and adjusting for selective testing: Pilot prospective observational study.

Autor: Hariharan D; Heller School for Social Policy and Management Brandeis University Waltham Massachusetts USA., Kumar VSS; Heller School for Social Policy and Management Brandeis University Waltham Massachusetts USA., Glaser EL; Heller School for Social Policy and Management Brandeis University Waltham Massachusetts USA., Crown WH; Heller School for Social Policy and Management Brandeis University Waltham Massachusetts USA., Wolf ZA; Clinetic Durham North Carolina USA., Fisher KA; Duke University School of Medicine Duke University Durham North Carolina USA., Wood CT; Duke University School of Medicine Duke University Durham North Carolina USA., Malcolm WF; Duke University School of Medicine Duke University Durham North Carolina USA., Nelson CB; Medical Evidence Generation Sanofi Swiftwater Pennsylvania USA., Shepard DS; Heller School for Social Policy and Management Brandeis University Waltham Massachusetts USA.

Publikováno v: Health science reports [Health Sci Rep] 2023 Jun 16; Vol. 6 (6), pp. e1338. Date of Electronic Publication: 2023 Jun 16 (Print Publication: 2023).

Respiratory Syncytial Virus During the COVID-19 Pandemic Compared to Historic Levels: A Retrospective Cohort Study of a Health System.

Autor: Movva N; EpidStrategies, A Division of ToxStrategies, Rockville, Maryland, USA., Suh M; EpidStrategies, A Division of ToxStrategies, Rockville, Maryland, USA., Reichert H; EpidStrategies, A Division of ToxStrategies, Rockville, Maryland, USA., Hintze B; Duke Institute for Health Innovation, Durham, North Carolina, USA., Sendak MP; Duke Institute for Health Innovation, Durham, North Carolina, USA., Wolf Z; Clinetic, Durham, North Carolina, USA., Carr S; Clinetic, Durham, North Carolina, USA., Kaminski T; Clinetic, Durham, North Carolina, USA., White M; Sanofi, Swiftwater, Pennsylvania, USA., Fisher K; Duke University Health System, Durham, North Carolina, USA., Wood CT; Duke University Health System, Durham, North Carolina, USA., Fryzek JP; EpidStrategies, A Division of ToxStrategies, Rockville, Maryland, USA., Nelson CB; Sanofi, Swiftwater, Pennsylvania, USA., Malcolm WF; Duke University Health System, Durham, North Carolina, USA.

Publikováno v: The Journal of infectious diseases [J Infect Dis] 2022 Aug 15; Vol. 226 (Suppl 2), pp. S175-S183.

Hydrocortisone to Improve Survival without Bronchopulmonary Dysplasia.

Autor: Watterberg KL; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Walsh MC; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Li L; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Chawla S; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., D'Angio CT; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Goldberg RN; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Hintz SR; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Laughon MM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Yoder BA; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Kennedy KA; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., McDavid GE; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Backstrom-Lacy C; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Das A; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Crawford MM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Keszler M; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Sokol GM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Poindexter BB; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Ambalavanan N; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Hibbs AM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Truog WE; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Schmidt B; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Wyckoff MH; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Khan AM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Garg M; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Chess PR; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Reynolds AM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Moallem M; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Bell EF; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Meyer LR; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Patel RM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Van Meurs KP; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Cotten CM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., McGowan EC; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Hines AC; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Merhar S; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Peralta-Carcelen M; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Wilson-Costello DE; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Kilbride HW; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., DeMauro SB; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Heyne RJ; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Mosquera RA; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Natarajan G; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Purdy IB; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Lowe JR; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Maitre NL; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Harmon HM; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Hogden LA; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Adams-Chapman I; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Winter S; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Malcolm WF; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.)., Higgins RD; From the University of New Mexico Health Sciences Center, Albuquerque (K.L.W., C.B.-L., J.R.L.); the Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland (M.C.W., A.M.H., D.E.W.-C.), Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati (B.B.P., S.M.), and the Department of Pediatrics, Nationwide Children's Hospital, Ohio State University College of Medicine, Columbus (M.M., N.L.M.) - all in Ohio; the Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park (L.L.), the Department of Pediatrics, Duke University, Durham (R.N.G., C.M.C., W.F.M.), and the Division of Neonatal-Perinatal Medicine, Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill (M.M.L.) - all in North Carolina; the Department of Pediatrics, Wayne State University (S.C., G.N.), and the Department of Pediatrics, Central Michigan University (S.C.) - both in Detroit; the University of Rochester School of Medicine and Dentistry, Rochester (C.T.D., P.R.C.), and the Department of Pediatrics, University of Buffalo Women's and Children's Hospital of Buffalo, Buffalo (A.M.R.) - both in New York; the Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto (S.R.H., K.P.V.M.), and the Department of Pediatrics, University of California, Los Angeles, Los Angeles (M.G., I.B.P.) - both in California; the Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City (B.A.Y., S.W.); the Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston, Houston (K.A.K., G.E.M., A.M.K., R.A.M.), and the Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas (M.H.W., R.J.H.) - both in Texas; the Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville (A.D., M.M.C.), and the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda (R.D.H.) - both in Maryland; the Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, RI (M.K., E.C.M.); the Department of Pediatrics, Indiana University School of Medicine, Indianapolis (G.M.S., A.C.H.); Emory University School of Medicine, Department of Pediatrics, Children's Healthcare of Atlanta, Atlanta (B.B.P., R.M.P., N.L.M., I.A.-C.); the Division of Neonatology, University of Alabama at Birmingham, Birmingham (N.A., M.P.-C.); the Department of Pediatrics, Children's Mercy Hospital, Kansas City, MO (W.E.T., H.W.K.); the Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia (B.S., S.B.D.); the Department of Pediatrics, University of Iowa, Iowa City (E.F.B., H.M.H.); the Department of Pediatrics, Sanford School of Medicine, University of South Dakota, Sioux Falls (L.R.M., L.A.H.); and the College of Health and Human Services, George Mason University, Fairfax, VA (R.D.H.).

Publikováno v: The New England journal of medicine [N Engl J Med] 2022 Mar 24; Vol. 386 (12), pp. 1121-1131.