[1] Massachusetts Gen Hosp, Neurol, Boston, MA 02114 USA
[2] Univ Chicago, Chicago, IL 60637 USA
[3] Boston Childrens Hosp, Boston, MA USA
[4] NYU, Langone Med Ctr, New York, NY USA
[5] Johns Hopkins, Baltimore, MD USA
[6] Childrens Hosp Los Angeles, Los Angeles, CA 90027 USA
[7] Indiana Univ, Indianapolis, IN 46204 USA
[8] Washington Univ, St Louis, Ukraine
[9] Childrens Hosp Philadelphia, Philadelphia, PA 19104 USA
[10] Univ Alabama, Birmingham, AL USA
[11] Childrens Natl Med Ctr, Neurol Dept, Washington, DC 20010 USA
[12] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10021 USA