1. Child Health and Development Studies of the Public Health Institute; Berkeley CA
2. Cedars Sinai Medical Center, Obstetrics and Gynecology; Los Angeles CA
3. UCSF Medical Center at Mount Zion, Center for Reproductive Health; San Francisco CA
4. UCSF Helen Diller Family Comprehensive Cancer Center, Department of Obstetrics, Gynecology and Reproductive Services; San Francisco CA