1. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Canada
2. Departments of Medicine, and Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Canada
3. Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
4. Departments of Medicine, Surgery, & of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Canada
5. Institute for Health Policy, Management & Evaluation, University of Toronto, Toronto, Canada
6. Department of Medicine, University of Ottawa, Ottawa, Canada
7. Dalla Lana School of Public Health, University of Toronto, Toronto, Canada