1. Department of Medicine, University of California San Francisco, San Francisco, CA, USA
2. Division of Infectious Diseases, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
3. Social and Behavioral Sciences Department, Rakai Health Sciences Program, Kalisizo, Uganda
4. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
5. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
6. Department of Health Behavior Health Education, University of Michigan, Ann Arbor, MI, USA
7. Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA