1. Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
2. Center for Health Equity Research & Promotion, VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania, USA.
3. Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
4. Magee-Women’s Research Institute, Pittsburgh, Pennsylvania, USA.
5. Center for Research on Health Care, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
6. Departments of Obstetrics & Gynecology and Health Services, University of Washington, Seattle, Washington, USA.
7. Center for Veteran-Centered and Value-Driven Care, VA Puget Sound Health Care System, Seattle, Washington, USA.
8. Center for Innovative Research on Gender Health Equity, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.