1 Division of Child Neurology, Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, Ohio. Electronic address: Mark.Scher@UHhospitals.org.
2 Division of Neurology, Department of Pediatrics, Gillette Children's Specialty Healthcare, St. Paul, Minnesota.
3 Division of Neurology, Department of Pediatrics, Cincinnati Children's Hospital, University of Cincinnati, Cincinnati, Ohio.
4 Division of Child Neurology, Department of Neurology, Vanderbilt University Medical Center, Vanderbilt University, Nashville, Tennessee.
5 Department of Pediatrics, Sloan-Kettering Cancer Center, Weill Cornell Medical College, New York, New York.
6 Department of Pediatrics, Children's Mercy Hospital, University of Missouri-Kansas City School of Medicine, Kansas City, Missouri.