1. Clinical Research Scientist, Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
2. Social Scientist, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
3. Senior Lecturer, Department of Obstetrics and Gynecology, College of Health Sciences, University of Zimbabwe; Principal Investigator, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
4. Obstetrician & Gynecologist, Honorary lecturer, Department of Obstetrics and Gynecology, College of Health Sciences, University of Zimbabwe
5. Registered Nurse/Midwife, Clinical Research Coordinator, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
6. Clinical Research Site Leader, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
7. Laboratory Director, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
8. Coordinator, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
9. Community Engagement Coordinator, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
10. Research Pharmacist, University of Zimbabwe Clinical Trials Research Center, Harare, Zimbabwe
11. Laboratory Director, Mercy-Care Fertility Centre, Harare, Zimbabwe
12. Associate Director of Evidence Translation, Department of Epidemiology and Biostatistics, San Francisco, CA, USA
13. Senior Principal Clinical Research Scientist, Centre for Microbiology Research, Kenya Medical Research Institute, Nairobi, Kenya
14. Professor, Department of Obstetrics, Gynecology, & Reproductive Sciences, University of California, San Francisco, San Francisco, CA, USA
15. Professor, Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
16. Professor, Department of Health Behavior and Biological Sciences, University of Michigan, Ann Arbor, MI, USA
17. Professor, Institute for Global Health Sciences, University of California, San Francisco, San Francisco, CA, USA
18. Professor, Department of Obstetrics, Gynecology, & Reproductive Sciences, University of California, San Francisco, San Francisco, CA, USA; Professor, Department of Obstetrics and Gynecology, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe
19. Associate Professor, Department of Obstetrics, Gynecology, & Reproductive Sciences, University of California, San Francisco, San Francisco, CA, USA; Department of Epidemiology and Biostatistics, University of California, San Francisco, USA; Institute for Global Health Sciences, University of California San Francisco, San Francisco, CA, USA. Correspondence: