[1] Harvard Med Sch, Ctr Primary Care, Boston, MA 02115 USA
[2] Harvard Med Sch, Dept Global Hlth & Social Med, Boston, MA 02115 USA
[3] Harvard Med Sch, Program Global Primary Care & Social Change, Boston, MA USA
[4] Harvard Med Sch, Med, Boston, MA USA
[5] Brigham & Womens Hosp, Div Global Hlth Equ, 75 Francis St, Boston, MA 02115 USA