^○Kei Murayama (Diagnosis and Therapeutics of Intractable Disease, Intractable Disease Research Center, Juntendo University, Tokyo, Japan)

^○Erika Ogawa^1,2 (1.Tokyo Metropolitan Hiroo Hospital, Department of Pediatrics, Tokyo, Japan, 2.Nihon University, Department of Pediatrics and Child Health, Tokyo, Japan)

^○Shuichi Yatsuga (Department of Pediatrics, Fukuoka University, Fukuoka, Japan)

^○Masamichi Ikawa^1,2,3 (1.Department of Community Health Science, Faculty of Medical Sciences, University of Fukui, Fukui, Japan, 2.Department of Medical Genetics, University of Fukui Hospital, Fukui, Japan, 3.Department of Neurology, University of Fukui Hospital, Fukui, Japan)