1. Department of Biostatistics, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC
2. Department of Psychiatry, University of North Carolina School of Medicine, Chapel Hill, NC
3. UNC Global Projects–Zambia, LLC, Lusaka, Zambia
4. Department of Obstetrics and Gynecology, University of North Carolina School of Medicine, Chapel Hill, NC
5. Department of Obstetrics and Gynaecology, University of Zambia School of Medicine, Lusaka, Zambia
6. Department of Obstetrics and Gynecology, Warren Alpert Medical School, Brown University, Providence, RI
7. Department of Epidemiology, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC