1. College of Medicine and Allied Health Sciences, University of Sierra Leone, Freetown, Sierra Leone
2. Ministry of Health and Sanitation, Government of Sierra Leone, Freetown, Sierra Leone
3. King’s Centre for Global Health and Health Partnerships, School of Life Course & Population Sciences, King’s College London, London SE1 1UL, UK
4. Pharmacy Department, King’s College Hospital NHS Foundation Trust, London SE5 9RS, UK
5. Division Clinical Epidemiology, University Hospital Basel, CH-4051 Basel, Switzerland
6. Faculty of Medicine, University of Basel, CH-4001 Basel, Switzerland
7. Clinical Research Unit, Department of Medicine, Swiss Tropical and Public Health Institute, CH-4051 Basel, Switzerland
8. Centre for Multidisciplinary Research and Innovation, Abuja 9000211, Nigeria