1. Department of Pathological Diagnostics, Yamagata University Faculty of Medicine, Yamagata, Japan,
2. Department of Neurology, Hematology, Metabolism, Endocrinology and Diabetology, Yamagata University Faculty of Medicine, Yamagata, Japan,
3. Department of Dermatology, Yamagata City Hospital Saiseikan, Yamagata, Japan,
4. Department of Dermatology, Yamagata University Faculty of Medicine, Yamagata, Japan,
5. Department of Hematology and Cell Therapy, Yamagata University Faculty of Medicine, Yamagata, Japan