1. Haematology and Parasitology Units, Bolgatanga Regional Hospital, P.O. Box 26, Bolgatanga, Upper East Region, Ghana
2. Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
3. Obstetric Gynaecology Unit, Bolgatanga Regional Hospital, P.O. Box 26, Bolgatanga, Upper East Region, Ghana