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.
Jazyk:	angličtina
Zdroj:	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).
DOI:	10.1002/aet2.10601
Abstrakt:	Background: Free Open-Access Medical education (FOAM) use among residents continues to rise. However, it often lacks quality assurance processes and residents receive little guidance on quality assessment. The Academic Life in Emergency Medicine Approved Instructional Resources tool (AAT) was created for FOAM appraisal by and for expert educators and has demonstrated validity in this context. It has yet to be evaluated in other populations. Objectives: We assessed the AAT's usability in a diverse population of practicing emergency medicine (EM) physicians, residents, and medical students; solicited feedback; and developed a revised tool. Methods: As part of the Medical Education Translational Resources: Impact and Quality (METRIQ) study, we recruited medical students, EM residents, and EM attendings to evaluate five FOAM posts with the AAT and provide quantitative and qualitative feedback via an online survey. Two independent analysts performed a qualitative thematic analysis with discrepancies resolved through discussion and negotiated consensus. This analysis informed development of an initial revised AAT, which was then further refined after pilot testing among the author group. The final tool was reassessed for reliability. Results: Of 330 recruited international participants, 309 completed all ratings. The Best Evidence in Emergency Medicine (BEEM) score was the component most frequently reported as difficult to use. Several themes emerged from the qualitative analysis: for ease of use-understandable, logically structured, concise, and aligned with educational value. Limitations include deviation from questionnaire best practices, validity concerns, and challenges assessing evidence-based medicine. Themes supporting its use include evaluative utility and usability. The author group pilot tested the initial revised AAT, revealing a total score average measure intraclass correlation coefficient (ICC) of moderate reliability (ICC = 0.68, 95% confidence interval [CI] = 0 to 0.962). The final AAT's average measure ICC was 0.88 (95% CI = 0.77 to 0.95). Conclusions: We developed the final revised AAT from usability feedback. The new score has significantly increased usability, but will need to be reassessed for reliability in a broad population. Competing Interests: The authors have no potential conflicts to disclose. All authors had full access to all the study data and had final responsibility for the decision to submit for publication. (© 2021 by the Society for Academic Emergency Medicine.)
Databáze:	MEDLINE
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