1. Division of Pediatric Neurology; Mattel Children's Hospital at UCLA; David Geffen School of Medicine; Los Angeles California U.S.A
2. Epilepsy Center; Ann and Robert H. Lurie Children's Hospital; Northwestern University Feinberg School of Medicine; Chicago Illinois U.S.A
3. Division of Pediatric Neurology; Nationwide Children's Hospital at The Ohio State University; Columbus Ohio U.S.A
4. Division of Pediatric Neurology; The Children's Hospital of Philadelphia; University of Pennsylvania; Philadelphia Pennsylvania U.S.A