1. Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya;, Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg,
South Africa;, Department of Pharmacology, Clinical Pharmacy, and Pharmacy Practice, Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya;
2. Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya;
3. Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa;
4. Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
5. Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya;, Centre for Evidence-based Health Care, Division of Epidemiology and Biostatistics, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg,
South Africa;