[1] Rwinkwavu Dist Hosp, Minist Hlth, Rwinkwavu, Rwanda
[2] Partners Hlth Inshuti Mu Buzima, Rwinkwavu, Rwanda
[3] Boston Childrens Hosp, Boston, MA USA
[4] Brigham & Womens Hosp, 75 Francis St, Boston, MA 02115 USA
[5] Partners Hlth Sierra Leone, Freetown, Sierra Leone
[6] Harvard Med Sch, Boston, MA USA