1. College of Public Health, University of Kentucky, 121 Washington Avenue, Lexington, KY, USA
2. Rural Center for AIDS/STD Prevention, Indiana University
3. The Kinsey Institute for Research in Sex, Gender, and Reproduction
4. Department of Family Relations and Applied Nutrition, University of Guelph
5. Department of Applied Health Science
6. Department of Gender Studies, Indiana University
7. University of Oxford