1. CONRAD/Department of Obstetrics and Gynecology Eastern Virginia Medical School Norfolk and Arlington Virginia
2. School of Health Professions Eastern Virginia Medical School Norfolk Virginia
3. Women's Global Health Imperative, RTI International San Francisco California
4. MRU (MatCH Research Unit) Department of Obstetrics and Gynaecology Faculty of Health Sciences University of the Witwatersrand Durban South Africa
5. University of Zimbabwe Clinical Trials Research Centre Harare Zimbabwe