1. Sexual Health Service Sydney Local Health District Sydney New South Wales Australia
2. School of Medical Sciences, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
3. Department of Tissue Pathology and Diagnostic Oncology Royal Prince Alfred Hospital, NSW Health Pathology Sydney New South Wales Australia
4. The Kirby Institute, UNSW Australia Sydney New South Wales Australia
5. Central Clinical School The University of Sydney Sydney New South Wales Australia