1. National Drug and Alcohol Research Centre UNSW Sydney Sydney Australia
2. The Kirby Institute UNSW Sydney Sydney Australia
3. Department of Family Medicine and Emergency Medicine Université de Montréal and Centre de Recherche du CHUM Montréal Canada
4. Discipline of Addiction Medicine University of Sydney Sydney Australia
5. The Burnet Institute Melbourne Australia
6. NSW State Reference Laboratory for HIV, St Vincent's Centre for Applied Medical Research St Vincent's Hospital Sydney Australia