1. University of California, San Francisco, School of Medicine, San Francisco, CA
2. Family AIDS Care and Education Services (FACES), Kisumu, Kenya
3. School of Public Health and Community Development, Maseno University, Kisumu, Kenya
4. Jaramogi Oginga Odinga Teaching and Referral Hospital, Kisumu, Kenya
5. Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco, San Francisco, CA
6. Department of Obstetrics and Gynecology, University of North Carolina, Chapel Hill, NC