1. Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
2. KHANA Center for Population Health Research, Phnom Penh, Cambodia
3. Center for Global Health Research, Touro University California, Vallejo, CA, USA
4. School of Public Health, National Institute of Public Health, Phnom Penh, Cambodia
5. Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London, School of Hygiene & Tropical Medicine, London, UK
6. National Center for HIV/AIDS, Dermatology and STD, Phnom Penh, Cambodia
7. Centre for Global Health Policy, University of Sussex, Brighton, UK