1. Social Determinant of Health research Center, Amiralmomenin Hospital, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
2. HIV/STI Surveillance Research Center, and WHO Collaborating Center for HIV Surveillance, Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
3. HIV/AIDS Control Office, Center for Communicable Disease, Ministry of Health, Tehran, Iran
4. Iran University of Medical Sciences, Tehran, Iran
5. Iranian Research Center for HIV/AIDS, Iranian Institute for Reduction of High-Risk Behaviors, Tehran University of Medical Sciences, Tehran, Iran
6. Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA, USA