1. Department of Health, Ethics & Society, School of Public Health and Primary Care (CAPHRI); Maastricht University; Maastricht Netherlands
2. Centre for Evidence-based Health Care, Department of Global Health, Faculty of Medicine and Health Sciences; Stellenbosch University; Cape Town South Africa
3. Centre for Global Health Research; Kenya Medical Research Institute; Kisumu Kenya
4. Department of Health; Kirinyaga County; Kerugoya Kenya
5. School of Public Health; University of the Western Cape; Cape Town South Africa
6. Honorary Research Fellow; Department of Clinical Sciences, Liverpool School of Tropical Medicine; Liverpool UK
7. EPPI-Centre, Social Science Research Unit, UCL Institute of Education; University College London; London UK
8. Africa Centre for Evidence, Faculty of Humanities; University of Johannesburg; Johannesburg South Africa