1. Department of Paediatrics, Dokkyo Medical University , Tochigi, Japan
2. Department of Radiology, Dokkyo Medical University , Tochigi, Japan
3. Department of Diagnostic Pathology, Dokkyo Medical University , Tochigi, Japan
4. Department of Dermatology, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University , Kanazawa, Japan
5. Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry , Tokyo, Japan