1. aUnited States Agency for International Development, Academic Model Providing Access To Healthcare Partnership, Eldoret, Kenya.
2. bIndiana University School of Medicine, 1001 West 10th Street (OPW-M200), Indianapolis, IN, 46202, United States of America.
3. dDepartment of Biostatistics, Indiana University, Indianapolis, USA.
4. cSchool of Medicine, Moi University, Eldoret, Kenya.