1. Epidemic Intelligence Service; Centers for Disease Control and Prevention (CDC); Atlanta GA USA
2. Division of Reproductive Health; National Center for Chronic Disease Prevention and Health Promotion; CDC; Atlanta GA USA
3. Division of Global Health Protection; Center for Global Health; CDC; Atlanta GA USA
4. Office of Births and Deaths; Sierra Leone Ministry of Health and Sanitation; Freetown Sierra Leone
5. Department of Gynecology and Obstetrics; Emory University School of Medicine; Atlanta GA USA
6. Division of Surveillance, Hazard Evaluations, and Field Studies; National Institute for Occupational Safety and Health; CDC; Washington DC USA
7. Office of the Director; National Center for Emerging and Zoonotic Infectious Diseases; CDC; Atlanta GA USA