1. The University of North Carolina Project-Lilongwe, Lilongwe, Malawi
2. Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
3. Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, USA
4. Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
5. Lighthouse Trust, Kamuzu Central Hospital, Lilongwe, Malawi
6. Department of Public Health, College of Medicine, School of Public Health and Family Medicine, University of Malawi, Blantyre, Malawi
7. Department of Global Health, University of Washington, Seattle, WA, USA