1. Immunodeficiency Treatment Centre, McGill University Health Centre, Montreal General Hospital, Montreal, Quebec, Canada
2. Division of Hematology, McGill University Health Centre, Montreal, Quebec, Canada
3. Toronto HIV Primary Care Physician's Group, Toronto, Ontario, Canada
4. University of Ottawa Health Services, Ottawa, Ontario, Canada
5. University of Toronto, Toronto, Ontario, Canada
6. Immunodeficiency Clinic, Toronto Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada