1. Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland.
2. Department of Community Health Sciences, Boston University School of Public Health, Boston, Massachusetts.
3. University of British Columbia School of Nursing, Vancouver, Canada.
4. Boston University School of Medicine, Boston, Massachusetts.
5. Department of Surgery, Oregon Health and Science University, Portland, Oregon.
6. Department of Family Medicine, Memorial Medical Center, Las Cruces, New Mexico.
7. Department of Health Behavior and Biological Sciences, Center for Sexuality and Health Disparities, University of Michigan School of Nursing, Ann Arbor, Michigan.