1. Department of Epidemiology and Public Health
2. Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
3. Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA, USA
4. Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
5. Office of Strategic Information and Research, Institute of Human Virology Nigeria, Abuja, Nigeria
6. Department of Obstetrics and Gynecology, University of Abuja Teaching Hospital
7. Department of Obstetrics and Gynecology, National Hospital Abuja
8. Department of Obstetrics and Gynecology, Garki Hospital Abuja
9. Department of Obstetrics and Gynecology, Asokoro District Hospital
10. Department of Obstetrics and Gynecology, Kubwa General Hospital Abuja
11. Department of Obstetrics and Gynecology, Wuse General Hospital, Abuja, Nigeria
12. Department of Obstetrics and Gynecology, Federal Medical Center, Keffi, Nigeria
13. Department of Microbiology, University College Hospital, University of Ibadan, Ibadan, Nigeria
14. Office of the Chief Executive Officer, Institute of Human Virology Nigeria, Abuja, Nigeria
15. Institute of Human Virology, University of Maryland, Baltimore, MD, USA