1. Research Division; Office of Population and Reproductive Health; U.S. Agency for International Development; Washington DC USA
2. Office of AIDS Research; National Institutes of Health; Bethesda MD USA
3. Family Planning Division; Global Development Program; Bill & Melinda Gates Foundation; Seattle WA USA
4. Mary Wohlford Foundation; San Francisco CA USA
5. Prevention Sciences Program; Division of AIDS; National Institute of Allergy and Infectious Diseases; Bethesda MD USA
6. Contraceptive Discovery and Development Branch; Eunice Kennedy Shriver National Institute of Child Health and Human Development; National Institutes of Health; Bethesda MD USA