1. Johns Hopkins University School of Medicine, Department of Psychiatry and Behavioral Sciences, AIDS Psychiatry Service, Baltimore, MD
2. Johns Hopkins University School of Medicine, Division of General Internal Medicine, Baltimore, MD
3. Centers for Disease Control and Prevention, National Center on Birth Defects and Developmental Disabilities, Prevention Research Branch, Atlanta, GA
4. Baltimore City Health Department, Druid STD Clinic, Baltimore, MD
5. Denver Public Health, Denver, CO