1. Factor-Inwentash Faculty of Social Work, University of Toronto, Toronto, Canada;
2. Centre for Outcomes Research and Evaluation, McGill University, Montréal, Canada;
3. Department of Family Medicine, McGill University, Montréal, Canada;
4. British Columbia Centre for Excellence in HIV/AIDS, Vancouver, Canada;
5. Women's College Hospital, Toronto, Canada;
6. Simon Fraser University, Burnaby, Canada; and
7. Centre for Viral Diseases, McGill University, Montréal, Canada.