1. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
2. School of Social Work, York University, Toronto, Ontario, Canada
3. BC Centre for Disease Control, Vancouver, British Columbia, Canada
4. School of Population and Public Health, The University of British Columbia, Vancouver, British Columbia, Canada
5. CIHR Canadian HIV Trials Network, Vancouver, British Columbia, Canada
6. School of Public Health & Social Policy, University of Victoria, Victoria, British Columbia, Canada