1. Department of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Garankuwa, Pretoria 0208, South Africa
2. United States Agency for International Development Global Health Supply Chain—Technical Assistance, Hatfield, Pretoria 0083, South Africa
3. South African Vaccination and Immunisation Centre, Sefako Makgatho Health Sciences University, Garankuwa, Pretoria 0208, South Africa
4. Management Science Department, Strathclyde Business School, University of Strathclyde, 199 Cathedral Street, Glasgow G4 0QU, UK
5. Department of Pharmacology, Clinical Pharmacy and Pharmacy Practice, University of Nairobi, Nairobi P.O. Box 30197-00100, Kenya
6. Institute of Orthopaedics Banjica, University of Belgrade, 11000 Belgrade, Serbia
7. Affordable Medicine Directorate, National Department of Health, Pretoria 0001, South Africa
8. Department of Pharmacoepidemiology, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK