1. Department of Obstetrics and Gynaecology, Faculty of Medical Sciences, University of Nigeria, Ituku-Ozalla Campus, Enugu, Nigeria
2. Institute of Maternal and Childhealth, University of Nigeria, Ituku-Ozalla Campus, Enugu, Nigeria
3. Department of Obstetrics and Gynaecology, Alex Ekwueme Federal University Teaching Hospital, Abakaliki (AEFUTHA), Abakaliki, Nigeria