1. The Kinsey Institute for Research in Sex, Gender, and Reproduction, Indiana University, Bloomington, Indiana, USA;
2. Department of Applied Health Science, Indiana University School of Public Health–Bloomington, Bloomington, Indiana, USA;
3. Department of Gender Studies, Indiana University, Bloomington, Indiana, USA;
4. Rural Center for AIDS/STD Prevention, Indiana University School of Public Health–Bloomington, Bloomington, Indiana, USA;
5. Center for HPV Research, Indiana University Medical School, Indianapolis, Indiana, USA;
6. Department of Epidemiology and Biostatistics, Indiana University School of Public Health–Bloomington, Bloomington, Indiana, USA;
7. Westat, Rockville, Maryland, USA