1. Department of Public Health, The University of Texas at San Antonio, San Antonio, TX, USA
2. Central Clinical School, Monash University, Melbourne, Australia
3. Melbourne Sexual Health Centre, Alfred Health, Melbourne, Australia
4. Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
5. University of Sydney, Sydney, Australia
6. Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK