[1] Brown Univ, Hasbro Childrens Hosp, Warren Alpert Med Sch, Div Pediat Neurol, Providence, RI USA
[2] Univ Cincinnati, Cincinnati Childrens Hosp Med Ctr, Dept Pediat, Div Neurol,Coll Med, Cincinnati, OH USA
[3] Univ Calif San Francisco, Dept Neurol & Pediat, San Francisco, CA USA
[4] Duke Univ, Sch Med, Dept Pediat & Populat Hlth Sci, Durham, NC USA
[5] Childrens Natl Hosp, Prenatal Pediat Inst, Washington, DC USA
[6] George Washington Univ, Sch Med & Hlth Sci, Dept Neurol, Washington, DC USA
[7] George Washington Univ, Sch Med & Hlth Sci, Dept Pediat, Washington, DC USA
[8] Northwestern Univ, Ann & Robert H Lurie Childrens Hosp Chicago, Dept Pediat, Div Neurol,Feinberg Sch Med, Chicago, IL USA
[9] Baylor Coll Med, Texas Childrens Hosp, Dept Pediat Neurol & Dev Neurosci, Houston, TX USA
[10] Case Western Reserve Univ, Sch Med, Pediat & Neurol, Cleveland, OH USA
[11] Childrens Hosp Philadelphia, Div Neurol & Pediat, Philadelphia, PA USA
[12] Univ Penn, Div Neurol, Perelman Sch Med, Philadelphia, PA USA
[13] Childrens Hosp Philadelphia, Div Neurol & Pediat, 3401 Civ Ctr Blvd, Philadelphia, PA 19104 USA