^○Motomasa Suzuki¹, Tatsuro Kumaki¹, Yasuko Kojima¹, Mahito Atobe¹, Yusuke Aoki¹, Kazuya Itomi¹, Kei Murayama², Akira Ohtake³ (1.Department of Pediatric Neurology, Aichi Children's Health and Medical Center, Obu, Japan, 2.Department of Inherited Metabolic Diseases, Chiba Children's Hospital, Chiba, Japan, 3.Department of Pediatrics, Saitama Medical University, Saitama, Japan)

^○Yumi Tamura¹, Sumio Hyoudou^1,2 (1.Department of Pediatrics, Miyoshi Central Hospital, Miyoshi, Japan, 2.Department of Pediatrics, Hiroshima City Funaairi Citizens Hospital, Hiroshima, Japan)

^○Tsuyoshi Matsuoka¹, Masato Hiyane¹, Masaharu Ohfu¹, Toshiyuki Yamamoto², Hitoshi Osaka³, Jun-ichi Takanashi⁴, Hirotomo Saitsu⁵, Ken Inoue⁶ (1.Division of Child Neurology,Okinawa Prefectural Nanbu Medical Center and Children 's Medical Center,Haebaru,Japan, 2.Institute of Medical Genetics, Tokyo Women's Medical University, Tokyo, Japan, 3.Department of Pediatrics, Jichi Medical University, Tochigi, Japan, 4.Department of Pediatrics, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Japan, 5.Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu,Japan, 6.Department of Mental Retardation & Birth Defect Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan)

^○Manami Morikawa¹, Mitsuo Motobayashi², Kyoko Takano³, Naoko Shiba¹, Mitsuho Takatsuki¹, Yuji Inaba¹ (1.Department of Pediatrics, Shinshu University, Nagano, Japan, 2.Department of Neonatology, Shinshu University, Nagano, Japan, 3.Department of Medical Genetics, Shinshu University, Nagano, Japan)