1. Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver
2. Canadian HIV Trials Network, Canadian Institutes of Health Research
3. Department of Medicine, University of British Columbia,Vancouver
4. Department of Centre Hospitalier Universitaire Sainte-Justine and Department of Microbiology, Infectiology and Immunology, University of Montreal, Quebec, Canada
5. Department of Obstetrics and
Gynecology