1. Brown School of Public Health, Brown University, Providence, Rhode Island.
2. HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute, and Columbia University, New York, New York.
3. International Center for Reproductive Health, Ghent, and Ghent University, Ghent, Belgium.
4. International Centre for Reproductive Health, Kenya, University of Nairobi, Nairobi, Kenya, and Ghent University.
5. College of the Holy Cross, Worcester, Massachusetts.
6. International Centre for Reproductive Health, Kenya.