1. School of Medicine, Moi University, Eldoret, Kenya
2. Academic Model Providing Access to Healthcare (AMPATH) Partnership, Eldoret, Kenya
3. Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
4. Department of Health Services, Policy & Practice, Brown University, Providence, RI, USA
5. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada