[1] McGill University,Department of Medicine
[2] University of British Columbia,Centre for Clinical Epidemiology and Evaluation, Vancouver General Hospital
[3] University of British Columbia,Department of Health Care and Epidemiology, Faculty of Medicine
[4] St Paul’s Hospital,Centre for Health Evaluation and Outcome Sciences
[5] University of British Columbia,Faculty of Pharmaceutical Sciences
[6] Vancouver General Hospital Research Pavilion,Centre for Clinical Epidemiology and Evaluation