1. Department of Pediatrics; Pediatric Epilepsy Clinic; Severance Children's Hospital; Epilepsy Research Institute; Yonsei University College of Medicine; Seoul Korea
2. Department of Neurology; Ulsan University College of Medicine; Seoul Asan Hospital; Seoul Korea
3. Department of Neurology; Ajou University School of Medicine; Suwon Korea
4. Department of Neurology; Severance Hospital; Epilepsy Research Institute; Yonsei University College of Medicine; Seoul Korea