1. PhD Candidate (Medicine) at School of Public Health, Sydney Medical School, University of Sydney, Sydney, Australia
2. MD, MPH, is Principal Researcher and Coordinator of the Botswana Combination Prevention Project – Ministry of Health, Gaborone, Botswana
3. MD, PhD, FAFOEM, FAFPHM, is a Professor of Epidemiology and Occupational Medicine at School of Public Health, Sydney Medical School, University of Sydney, Sydney, Australia
4. MIA, PhD (The Main Supervisor), is the Associate Professor of International Public Health, Head of School, School of Public Health, Sydney Medical School, University of Sydney, Sydney, Australia