1. Department of Family Medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
2. Department of Health Behavior and Biological Sciences, School of Nursing and Center for Sexuality and Health Disparities, University of Michigan, Ann Arbor, MI, USA
3. Department of Global Health, Emory University Rollins School of Public Health, Atlanta, GA, USA
4. Division of Infectious Diseases, Emory University School of Medicine, Atlanta, Georgia, USA