1 Child Healthcare and Genetic Science Laboratory, Division of Health Sciences, Osaka University Graduate School of Medicine, 1-7 Yamadaoka, Suita, Osaka, 565-0871, Japan.
2 Division of Child Neurology, Institute of Neurological Science, Faculty of Medicine, Tottori University, 36-1 Nishi-cho, Yonago, Tottori, 683-8504, Japan.
3 Department of Rehabilitation, Niigata University of Health and Welfare, 1398 Shimami-cho, Kita-ku, Niigata, Niigata, 950-3198, Japan.
4 Japan Medical Office, Takeda Pharmaceutical Company Limited, 1-1 Nihonbashi-Honcho 2-chome Chuo-ku, Tokyo, 103-8668, Japan.
5 Child Healthcare and Genetic Science Laboratory, Division of Health Sciences, Osaka University Graduate School of Medicine, 1-7 Yamadaoka, Suita, Osaka, 565-0871, Japan. norio@sahs.med.osaka-u.ac.jp.