1. Department of Medicine, University of Ilorin Teaching Hospital, Ilorin, Nigeria;
2. Departments of Obstetrics and Gynaecology, University of Ilorin Teaching Hospital, Ilorin;
3. Departments of Obstetrics and Gynaecology, Kwara State Specialist Hospital, Ilorin, Nigeria;
4. Departments of Medicine, Kwara State Specialist Hospital, Ilorin, Nigeria;
5. Department of Epidemiology, Kwara State Ministry of Health, Ilorin, Nigeria