1. Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
2. Medical Genome Center, National Center of Neurology and Psychiatry, Tokyo, Japan
3. Department of Clinical Epidemiology, Translational Medical Center, National Center of Neurology and Psychiatry, Tokyo, Japan
4. Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
5. Department of Neurology, Matsudo City General Hospital, Chiba, Japan
6. Department of Pediatrics, Kobe University Graduate School of Medicine, Hyogo, Japan
7. Department of Neurology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
8. Department of Rheumatology, Seirei Hamamatsu General Hospital, Shizuoka, Japan
9. Department of Neurology, JR Kyushu Hospital, Fukuoka, Japan
10. Department of Rheumatic Diseases, Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
11. Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
12. Department of Neurology, Ageo Central General Hospital, Saitama, Japan
13. Department of Neurology, Kobe City Medical Center General Hospital, Hyogo, Japan
14. Department of Neurology, Dokkyo Medical University Saitama Medical Center, Saitama, Japan
15. Department of General Medicine, Toyooka Hospital, Hyogo, Japan
16. Department of Neurology, Otemae Hospital, Osaka, Japan
17. Department of General Internal Medicine, Tenri Hospital, Nara, Japan
18. Department of Neurology, Tenri Hospital, Nara, Japan
19. Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
20. Department of Dermatology, Graduate School of Medicine, Osaka University, Osaka, Japan
21. Laboratory of Cutaneous Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Osaka, Japan