[1] University of Manitoba,Department of Internal Medicine
[2] University of Manitoba,Department of Community Health Sciences
[3] Health Sciences Centre,Departments of Psychiatry and Medicine
[4] Dalhousie University,Faculty of Rehabilitation Medicine
[5] University of Alberta,College of Pharmacy and Nutrition
[6] University of Saskatchewan,Department of Epidemiology and Biostatistics and Occupational Health
[7] McGill University,Department of Community Health Sciences
[8] Research Institute of the McGill University Health Centre,School of Public Health
[9] University of Calgary,Surveillance and Assessment
[10] University of Alberta,Department of Medicine (Neurology)
[11] Alberta Health,undefined
[12] University of British Columbia,undefined