1. Directorate of Internal Medicine, Komfo Anokye Teaching Hospital, PO Box 1934, Kumasi, Ghana
2. Faculty of Medicine, Clinical Epidemiology Unit, Memorial University of Newfoundland, St John’s, NL, Canada
3. Public Health Unit, Komfo Anokye Teaching Hospital, Kumasi, Ghana
4. Department of Medicine, School of Medical Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
5. Department of Internal Medicine, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
6. Department of Sociology, Memorial University of Newfoundland, St Johns, NL, Canada