1. School of Nursing, The Muhimbili University of Health and Allied Sciences, P.O. Box 65001, Dar es Salaam, Tanzania
2. School of Pharmacy, The Muhimbili University of Health and Allied Sciences, P.O. Box 65013, Dar es Salaam, Tanzania
3. School of Diagnostic Medicine, Muhimbili University of Health and Allied Sciences, P.O. Box 65001, Dar es Salaam, Tanzania
4. Department of Pharmacy, Mbeya Zonal Referral Hospital, P.O. Box 419, Mbeya, Tanzania
5. School of Public Health and Allied Sciences, The Muhimbili University of Health and Allied Sciences, P.O. Box 65001, Dar es Salaam, Tanzania