1Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004,
2Department of Pediatric Neurology, Takuto Rehabilitation Center for Children, Sendai 982-0241,
3Department of Pediatrics, Yamagata University Faculty of Medicine, Yamagata 990-9585,
4Division of Neurology, Clinical Research Institute, Kanagawa Children's Medical Center, Yokohama 232-8555,
5Department of Pediatric Neurology, Seirei-Mikatahara General Hospital, Hamamatsu 433-8558,
6Department of Pediatric Neurology, Morinomiya Hospital, Osaka 536-0025,
7Department of Pathology, Brain Research Institute, University of Niigata, Niigata 951-8585,
8Department of Pediatrics, Toyohashi Municipal Hospital, Toyohashi 441-8570,
9Division of Pediatrics and Perinatology, Tottori University Faculty of Medicine, Tottori 683-8504,
10Division of Child Neurology, Department of Brain and Neurosciences, Tottori University Faculty of Medicine, Yonago 683-8504,
11Department of Pediatrics, Asahikawa Medical University, Asahikawa 078-8510,
12Department of Neurology, Nagano Children's Hospital, Azumino 399-8288,
13Aichi Welfare Center for Persons with Developmental Disabilities, Kasugai 480-0392,
14Department of Pediatrics, Yodogawa Christian Hospital, Osaka 533-0032,
15Department of Pediatrics, Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya 467-8601,
16Department of Pediatrics, Kitano Hospital, Osaka 530-8480