1. Massachusetts General Hospital; Department of Emergency Medicine; 326 Cambridge St, Suite 410 Boston Massachusetts USA 02114
2. 1G1.52 Walter Mackenzie Health Centre; Division of Emergency Medicine; 8440 - 112 ST Edmonton Alberta Canada T6G 2B7
3. University of Alberta; Department of Emergency Medicine; Room 1G1.43 Walter C. Mackenzie Health Sciences Centre 8440 112th Street Edmonton Alberta Canada T6G 2B7