1 McGill University, Montreal General Hospital, Montreal, Canada.
2 Department of Emergency Medicine, Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran.
3 Emergency Ultrasound, Department of Emergency Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, USA.
4 Department of Emergency Medicine, Dalhousie Medicine, New Brunswick, Canada.
5 Department of Emergency Medicine, Horizon Health Network, Saint John, NB, Canada.
6 Dalhousie Medicine New Brunswick, Saint John, NB, Canada.
7 Emergency Medicine, Cumming School of Medicine, University of Calgary, Alberta Health Services, Calgary Zone, Alberta, Canada. Eddy.Lang@albertahealthservices.ca.