1. Department of Obstetrics and Gynecology, Feinberg School of Medicine Northwestern University Chicago Illinois USA
2. Department of Obstetrics and Gynecology Harvard Medical School Boston Massachusetts USA
3. Department of Obstetrics and Gynecology John H. Stroger, Jr. Hospital of Cook County Chicago Illinois USA
4. Department of Anthropology, The Graduate School Northwestern University Evanston Illinois USA
5. Department of Obstetrics & Gynecology University of North Carolina Raleigh North Carolina USA
6. Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine Institute for Public Health and Medicine (IPHAM) – Center for Health Equity Transformation Chicago Illinois USA