1. Human and Veterinary Medicines, Tanzania Medicines and Medical Devices Authority (TMDA) , Dar es Salaam , Tanzania
2. Pharmaceutical and Medicinal Chemistry, Institute for Pharmacy and Food Chemistry, Universität Würzburg , 97074 Würzburg , Germany
3. Laboratory Services, Tanzania Medicines and Medical Devices Authority (TMDA) , Dar es Salaam , Tanzania
4. Pharm R&D Lab, School of Pharmacy, Muhimbili University of Health and Allied Sciences , P.O. Box 65545, 11103, Upanga West, Dar es Salaam , Tanzania