1. Department of Pharmacology and Pharmacognosy, School of Pharmacy, University of Nairobi, Nairobi, Kenya
2. Department of Clinical Medicine and Therapeutics, School of Medicine, University of Nairobi, Nairobi, Kenya
3. Strathclyde Institute of Pharmacy and Biomedical Sciences, Strathclyde University, Glasgow, UK
4. School of Pharmacy, Catholic University of Health and Allied Science, Mwanza, Tanzania
5. Department of Clinical Pharmacology, School of Medicine, University of Botswana, Gaborone, Botswana
6. Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden
7. Health Economics Centre, Liverpool University Management School, Liverpool University, Liverpool, UK