1. Department of Hematology, Japan Community Health care Organization Kyoto Kuramaguchi Medical Center, Japan
2. Department of Immunology and Hematology, Graduate School of Health Sciences, Kumamoto University, Japan
3. Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Japan
4. Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Japan
5. Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Japan
6. Department of Biological Sciences for Intractable Neurological Diseases, Institute for Biomedical Sciences, Shinshu University, Japan
7. Department of Public Health, Osaka City University Faculty of Medicine, Japan