1. Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia.
2. Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia.
3. Adolescent Health Promotion and STD/HIV/HCV Programs, Multnomah County Public Health Department, Portland, Oregon.
4. HIV/STD/TB Program, Center for Public Health Practice, Oregon Public Health Division, Portland, Oregon.