1. Epidemiology and Population Health Program, BC Centre for Excellence in HIV/AIDS, Vancouver, Canada
2. School of Public Health and Social Policy, Faculty of Human and Social Development, University of Victoria, Victoria, Canada
3. Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada
4. School of Population and Public Health, University of British Columbia, Vancouver, Canada
5. Division of Infectious Diseases, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada