1. School of Public Health, University of the Western Cape, Cape Town, South Africa
2. Department of Nursing, Midwifery and Health, Nothumbria University, Newcastle upon Tyne, UK
3. Health Systems and Research Ethics, KEMRI-Wellcome Trust Programme, Nairobi, Kenya
4. Operations Division, Research, Expertise and Training Department, Recherche Pour la Santé et le Développement (RESADE, Ouagadougou, Burkina Faso
5. Department of Research, Expertise and Capacity Building, Research, Expertise and Training Department, Recherche Pour la Santé et le Développement (RESADE), Ouagadougou, Burkina Faso
6. Department of Public Health, University Joseph Ki-Zerbo, Ouagadougou, Burkina Faso
7. Heidelberg Institute of Global Health, Medical Faculty and University Hospital, Heidelberg University, Heidelberg, Germany
8. Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium
9. School of Public Health, Makerere University College of Health Sciences, Kampala, Uganda
10. Department of Infectious Disease Epidemiology and International Health, London School of Hygiene & Tropical Medicine, London, UK