1. Department of Obstetrics and Gynecology College of Medicine University of Lagos Lagos Nigeria
2. Department of Obstetrics and Gynecology Lagos University Teaching Hospital Lagos Nigeria
3. Department of Hematology and Blood Transfusion College of Medicine University of Lagos Lagos Nigeria
4. AIDS Prevention Initiative in Nigeria (APIN) Clinic Lagos University Teaching Hospital Lagos Nigeria
5. Department of Community Health and Primary Health Care College of Medicine University of Lagos Lagos Nigeria
6. Department of Obstetrics and Gynecology Lagos State University Teaching Hospital Ikeja Nigeria
7. Department of Immunology and Infectious Diseases Harvard School of Public Health Boston MA USA