[1] Univ Alabama Birmingham, Dept Neurosurg, Birmingham, AL 35294 USA
[2] Harvard Med Sch, Program Global Surg & Social Change, Dept Global Hlth & Social Med, Boston, MA 02115 USA
[3] Harvard Med Sch, Boston Childrens Hosp, Dept Neurosurg, Boston, MA 02115 USA
[4] Duke Univ, Med Ctr, Dept Neurosurg, Durham, NC USA
[5] Henry Ford Hlth Syst, Dept Neurosurg, Detroit, MI USA
[6] North Okkalapa Hosp, Dept Neurosurg, Yangon, Myanmar