1. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town , Cape Town , South Africa
2. Joint Clinical Research Centre , Research Department, Kampala , Uganda
3. Department of Pharmacology and Therapeutics, University of Liverpool , Liverpool , United Kingdom
4. Infectious Diseases Institute, Makerere University College of Health Sciences , Kampala , Uganda
5. Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin , Turin , Italy
6. North Manchester General Hospital , HIV Research Unit, Manchester , United Kingdom