Association of IL-6 rs1800795, but not TNF-α rs1800629, and IL-1β rs16944 polymorphisms' genotypes with recovery of ischemic stroke patients following thrombolysis.

Autor: Dusanovic Pjevic M; Faculty of Medicine, Institute of Human Genetics, University of Belgrade, Belgrade, Serbia., Vojvodic L; Neurology department, Euromedic Hospital, Belgrade, Serbia., Grk M; Faculty of Medicine, Institute of Human Genetics, University of Belgrade, Belgrade, Serbia., Todorovic J; Faculty of Medicine, Institute of Social Medicine, University of Belgrade, Belgrade, Serbia., Maksimovic N; Faculty of Medicine, Institute of Human Genetics, University of Belgrade, Belgrade, Serbia., Rasic M; Faculty of Medicine, Institute of Human Genetics, University of Belgrade, Belgrade, Serbia., Perovic D; Faculty of Medicine, Institute of Human Genetics, University of Belgrade, Belgrade, Serbia., Damnjanovic T; Faculty of Medicine, Institute of Human Genetics, University of Belgrade, Belgrade, Serbia., Trickovic J; Radiology department, St. Sava Hospital, Belgrade, Serbia., Kacar K; Radiology department, Al Adan Hospital, Kuwait., Jekic B; Faculty of Medicine, Institute of Human Genetics, University of Belgrade, Belgrade, Serbia.

Publikováno v: Neurological research [Neurol Res] 2024 Feb; Vol. 46 (2), pp. 157-164. Date of Electronic Publication: 2024 Jan 01.

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

N–H...O hydrogen bonding. FT-IR, NIR and 1H NMR study of N-methylpropionamide – Dialkyl ether systems

Autor: Nikolić, A., Jović, B., Krstić, V., Tričković, J.

Publikováno v: In Journal of Molecular Structure 2008 889(1):328-331

Identification and functional interpretation of miRNAs affected by rare CNVs in CAKUT.

Autor: Mitrovic K; Department of Radiobiology and Molecular Genetics, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Zivotic I; Department of Radiobiology and Molecular Genetics, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Kolic I; Department of Radiobiology and Molecular Genetics, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Djordjevic A; Department of Radiobiology and Molecular Genetics, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Zakula J; Department of Molecular Biology and Endocrinology, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Filipovic Trickovic J; Department of Physical Chemistry, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Zivkovic M; Department of Radiobiology and Molecular Genetics, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Stankovic A; Department of Radiobiology and Molecular Genetics, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia., Jovanovic I; Department of Radiobiology and Molecular Genetics, 'Vinča' Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia. ivanj@vin.bg.ac.rs.

Publikováno v: Scientific reports [Sci Rep] 2022 Oct 22; Vol. 12 (1), pp. 17746. Date of Electronic Publication: 2022 Oct 22.

The revised Approved Instructional Resources score: An improved quality evaluation tool for online educational resources.

Autor: Grock A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA., Jordan J; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA., Zaver F; Division of Emergency Medicine University of Calgary Calgary Alberta Canada., Colmers-Gray IN; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada., Krishnan K; Department of Family Medicine McMaster University Hamilton Ontario Canada., Chan T; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada., Thoma B; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Alexander C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Alkhalifah M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Almehlisi AS; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Alqahtani S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Anderson S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Anderson S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Andrews C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Andruko J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Antony N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Aryal D; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Backus B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Baird J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Baker A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Batty S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Baylis J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Beaumont B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Belcher C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Benavides B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Benham M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Botta J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Berger Pelletier E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Bouchard N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Brazil V; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Brumfield E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Bryson A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Bunchit W; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Butler K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Buzikievich L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Calcara D; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Carey R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Carrillo MR; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Carroll S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lyons C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Cassidy L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Challen K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chan K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chaplin T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chatham-Zvelebil N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chen E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chen L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chhabra S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chin A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Chochi E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Choudhri T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Christensen J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Connors K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Coppersmith V; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Cosgrove A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Costello G; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Cullison K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., D'Alessandro A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Wit K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Decock M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Delbani R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Denq W; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Deutscher J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Devine B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Dorsett M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Duda T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Dueweke J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Dunphy T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Dyer S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Eastley KT; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Edmonds M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Edwards K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ehrman R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Elkhalidy Y; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Fedor P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ficiur B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Flynn C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Fraser B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Fu M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Fukakusa J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Funk E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Gaco D; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Gawlik V; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ghaffarian K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Gharahbaghian L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Griffith A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Griffith P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Gronowski T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Grossman C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Gucwa J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Gupta P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Gustafson A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Guy A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Haas M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Haciski S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hajdinjak E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hall AK; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hammock R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hansel J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hart A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hattin L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Herb B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hilbert S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hill J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Hill J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ho A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., House E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., House N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Huang SYM; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Huffman J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Inboriboon C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ireland A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Jamal A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Jamil MA; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Jansen V; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Jarou Z; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Jia V; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Johnston L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kalnow D; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kapur P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kelly S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kelson K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kent W; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Khakhkhar R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Khurana J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kilp A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Knapp S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kohler S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Kruhlak I; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lalani N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lam S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lank P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Laurie Z; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lea K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Leber E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lee CH; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lenes H; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lenora N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Leontowicz J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lien K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lin M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lin Y; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Little A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Liu H; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Liu I; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Liu S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Louka S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lovell E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lowe D; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Lubberdink A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Luc J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ma SH; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., MacLeod H; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mancuso N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Maneshi A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., May J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mayo J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., McDonnell M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., McLellan S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., McQuarrie C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mead T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Meeuwisse C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Meloy P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Menzies P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Messman A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Miazga S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mills L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mix A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Montag S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Moore B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Morgenstern J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mott S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mukherj P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Mulla A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Nandalal S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Nikel T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Nood J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Nugent S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Oakland M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Oberholzer W; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Otugo O; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Oyedokun TS; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Pardhan A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Patel K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Paterson Q; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Patocka C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Patterson C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Pearlman J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Pelletier-Bui A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Phan M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Poonja Z; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Powell A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Premkumar K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Prosen G; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Puri V; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Quaife T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Raffel R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Raja A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ramunno R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Rang L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Rannazzisi S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Regan S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Rezaie SR; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ridderikhof M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Rogers V; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Roh C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Rosenberg K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Roure M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Rudinsky S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Rudner J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Saleh A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Sanderson W; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Scheirer O; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Schofield P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Schunk P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Schwarz E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Shahrabadi P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Shappell E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Sheffield J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Singh M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Singson HC; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Slessor D; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Smith S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Sneath P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Sobehart R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Spearing K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Stempien J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Sternard B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Stratton T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Stuart K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Stuntz B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Susalla M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Sweeney C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Swisher L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Swoboda H; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Syed S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Taira T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Tambe N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Tang R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Targonsky E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Taylor A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Taylor R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Taylor T; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ting P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Tiwald G; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Tran E; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Tran K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Trickovic J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Trinquero P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Tyagi A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Umana M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Vallance P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Van den Berg P; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., van Diepen K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Vargas L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Verbeek R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Viggers S; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Vlodaver Z; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Wagner M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Walji N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Walter J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Wan M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Wang R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Wanner G; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Warawa W; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Ward M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Weekes J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Weersink K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Weessies C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Whalen-Browne A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Whiteside B; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Willis M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Wilmer J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Wong N; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Woodcroft M; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Woods R; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Yau L; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Yee J; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Yeh C; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Yurkiw K; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Zaver F; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada., Zozula A; Division of Emergency Medicine Greater Los Angeles VA Healthcare System Los Angeles California USA.; David Geffen School of Medicine UCLA Los Angeles California USA.; Ronald Reagan UCLA Medical Center David Geffen School of Medicine at UCLA Los Angeles California USA.; Division of Emergency Medicine University of Calgary Calgary Alberta Canada.; Department of Emergency Medicine University of Alberta Edmonton Alberta Canada.; Department of Family Medicine McMaster University Hamilton Ontario Canada.; Division of Emergency Medicine and Division of Education & Innovation Department of Medicine McMaster University Hamilton Ontario Canada.; Faculty of Health Sciences McMaster University Hamilton Ontario Canada.; Department of Emergency Medicine University of Saskatchewan Saskatoon Saskatchewan Canada.; Royal College of Physicians and Surgeons of Canada Ottawa Ontario Canada.

Publikováno v: AEM education and training [AEM Educ Train] 2021 May 16; Vol. 5 (3), pp. e10601. Date of Electronic Publication: 2021 May 16 (Print Publication: 2021).