1. From the British Columbia Centre on Substance Use (S.Y.), and the Department of Medicine (S.Y.), the Division of Hematology (L.C.), the Centre for Health Education Scholarship (L.C.), and the Division of Critical Care (J.W.), University of British Columbia, Vancouver, the Department of Emergency Medicine (W.P.) and the Department of Internal Medicine Section of Critical Care (J.W.), University of Manitoba, Winnipeg, and the Department of Pathology and Laboratory Medicine, Richmond General Hospital,...