1. Division of Pediatric Neurology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
2. Division of Pediatric Neurology, Department of Pediatrics, King Chulalongkorn Memorial Hospital/The Thai Redcross Society, Bangkok, Thailand
3. Section of Child Neurology, Department of Pediatrics, The University of Chicago Biological Sciences, Chicago, USA