1. Department of Obstetrics and Gynaecology, Medison Specialist Women’s Hospital and Fertility Assyst Center, Lagos, Nigeria
2. Department of Obstetrics and Gynaecology, Gynescope Hospital and Madonna University, Port Harcourt, Rivers State, Nigeria
3. Department of Obstetrics and Gynaecology, Federal Medical Center, Lokoja, Kogi State, Nigeria
4. Department of Obstetrics and Gynaecology, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
5. Department of Obstetrics and Gynaecology, Lagos University Teaching Hospital, Idi Araba, Lagos, Nigeria
6. Department of Obstetrics and Gynaecology, Imo State University Teaching Hospital, Orlu, Imo State, Nigeria
7. Department of Obstetrics and Gynaecology, Aminu Kano Teaching Hospital, Kano, Kano State, Nigeria
8. Department of Obstetrics and Gynaecology, Abubakar Tafawa Balewa University, Yelwa, Bauchi State, Nigeria
9. Department of Obstetrics and Gynaecology, University College Hospital Ibadan, Ibadan, Oyo State, Nigeria