1. Kirby Institute, University of New South Wales Sydney, Sydney, New South Wales, Australia
2. Department of Health Systems and Populations, Macquarie University, Sydney, New South Wales, Australia
3. Ministry of Health, New South Wales Government, St Leonards, New South Wales, Australia
4. Westmead Clinical School, Sydney University, Sydney, New South Wales, Australia
5. AIDS Council New South Wales, Sydney, New South Wales, Australia
6. Sydney Sexual Health Centre, Sydney, New South Wales, Australia
7. North Coast HIV/Sexual Health Services, Lismore, New South Wales, Australia