1. Indiana University, School of Medicine, 1001 West 10th Street, OPW‐M200, Indianapolis, IN 46202, USA
2. Moi University, School of Medicine, Eldoret, Kenya
3. Academic Model Providing Access to Healthcare (AMPATH), Eldoret, Kenya
4. Regenstrief Institute, Inc., Indianapolis, USA
5. Brown University, Department of Biostatistics, Providence, USA