[1] UCSF, Minneapolis, MN USA
[2] USCF MS Ctr, Minneapolis, MN USA
[3] Univ Calif San Francisco, San Francisco, CA 94143 USA
[4] Univ Utah, Salt Lake City, UT USA
[5] ChildrenS Hosp Philadelphia, Philadelphia, PA 19104 USA
[6] UT Southwestern Med Ctr, Dallas, TX USA
[7] Loma Linda Univ, Sch Med, Loma Linda, CA USA
[8] UAB Dept Pediat, Div Pediat Neurol, Birmingham, AL USA
[9] Mayo Clin, Rochester, MN USA
[10] NYU Langone Med Ctr, New York, NY USA
[11] Childrens Hosp Boston, Boston, MA USA
[12] Mayo Clin, Dept Neurol, Rochester, MN USA
[13] Univ Calif Berkeley, Berkeley, CA 94720 USA