1. Obstetrics and Gynaecology; University of Nigeria Enugu Campus/University of Nigeria Teaching Hospital Ituko-Ozalla; Enugu Nigeria
2. Effective Care Research Unit, Department of Obstetrics and Gynaecology; Faculty of Medicine, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus; PMB 5001, Nnewi Nigeria
3. Haematology and Immunolology; University of Nigeria Nsukka/University of Nigeria Teaching Hospital Ituku Ozalla; Enugu Nigeria
4. Department of Obstetrics and Gynaecology, Faculty of Medicine; University of Nigeria Enugu Campus/University of Nigeria Teaching Hospital Ituko-Ozalla; Enugu Nigeria
5. Department of Obstetrics/Gynaecology; Nnamdi Azikiwe University Teaching Hospital; Nnewi Nigeria
6. Department of Obstetrics and Gynaecology, Faculty of Medical Science; College of Medicine, University of Nigeria Enugu Campus/University of Nigeria Teaching Hospital Ituku-Ozalla; Enugu Nigeria
7. Department of Paediatrics; Faculty of Medical Sciences, College of Medicine, University of Nigeria Enugu Campus/University of Nigeria Teaching Hospital Ituku-Ozalla; Enugu Nigeria