Affiliation: | 1. Department of Pediatrics and Child Health, Kurume University Medical Center, Kurume, Fukuoka;2. Division of Neuromuscular Research, National Center for Nervous, Mental and Muscular Disorders, Kodaira, Tokyo;3. Department of Medicine and Pediatrics, School of Dentistry, Aichi-Gakuin University, Nagoya;4. 2nd Department of Pathology, Kurume University Medical Center, Kurume, Fukuoka |