Affiliation: | 1.Labone Senior High School, P. O. Box OS79, Osu, Accra. Ghana;2.Department of Biostatistics, School of Public Health, College of Health Sciences, University of Ghana, P. O. Box LG13, Legon, Accra. Ghana;3.Department of Health Policy, Planning & Management, School of Public Health, College of Health Sciences, University of Ghana, P. O. Box LG13, Legon, Accra. Ghana |