1. Departments of Obstetrics and Gynaecology, University of Nigeria Teaching Hospital, Ituku-Ozalla, P.M.B. 01129, Awka, Nigeria
2. Faculty of Medical Sciences, College of Medicine, University of Nigeria, Ituku-Ozalla Campus, Awka, Nigeria
3. Nnamdi Azikiwe University, Awka, Nigeria
4. Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria
5. Department of Pharmacology, Faculty of Pharmaceutical Sciences, Enugu State University of Science and Technology, Parklane, Enugu State, Nigeria
6. Department of Pharmacy, Enugu State University of Science and Technology (ESUT) Teaching Hospital, Parklane, Enugu State, Nigeria