[1] University of Calgary,Division of Emergency Medicine
[2] Foothills Medical Centre,Clinical Epidemiology Program
[3] Ottawa Hospital Research Institute,Centre for Studies in Family Medicine, Department of Family Medicine
[4] The University of Western Ontario,Department of Philosophy, Philosophy and Medicine, Rotman Institute of Philosophy
[5] University of Western Ontario,Education and Statistics, Graduate School of Education
[6] University of Pennsylvania,Ottawa Hospital Research Institute, Clinical Epidemiology Program
[7] Ottawa Hospital,Ottawa Hospital Research Institute
[8] Clinical Epidemiology Program,Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry
[9] The University of Western Ontario,Clinical Effectiveness, Institute of Health & Society
[10] Newcastle University,Ottawa Hospital Research Institute Department of Medicine
[11] University of Ottawa,Department of Epidemiology and Community Medicine
[12] Institute for Clinical Evaluative Sciences,undefined
[13] University of Ottawa,undefined