1. Pharmaceutical Institute, Eberhard Karls University Tübingen, Tübingen, Germany;
2. School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda;
3. East African Community Regional Centre of Excellence for Vaccines, Immunizations and Health Supply Chain Management (EAC RCE-VIHSCM), University of Rwanda, Kigali, Rwanda;
4. Pharmacy Department, College of Medicine, University of Malawi, Blantyre, Malawi