[1] Indiana Univ Sch Med, Dept Pediat, Childrens Hlth Serv Res, Indianapolis, IN 46202 USA
[2] Acad Model Providing Access Healthcare AMPATH, Eldoret, Kenya
[3] Moi Univ, Sch Med, Dept Child Hlth & Paediat, Coll Hlth Sci, Eldoret, Kenya
[4] Moi Univ, Sch Med, Dept Behav Sci, Coll Hlth Sci, Eldoret, Kenya
[5] Indiana Univ Sch Med, Dept Med, Indianapolis, IN 46202 USA