1. Department of Obstetrics & Gynaecology, University of Ghana Medical School, Accra, Ghana
2. Department of Obstetrics & Gynaecology, Korle Bu Teaching Hospital, Accra, Ghana
3. Department of Epidemiology and Disease Control School of Public Health, University of Ghana, Accra, Ghana
4. Department of Obstetrics & Gynaecology, LEKMA Hospital, Teshie, Accra, Ghana