1. Department of Hematology; Shonan Kamakura General Hospital; Kamakura Japan
2. Department of Pathology; Tokai University; School of Medicine; Isehara Japan
3. Department of Pathology; Shonan Kamakura General Hospital; Kamakura Japan
4. Department of Nephrology, Immunology, and Vascular Medicine; Shonan Kamakura General Hospital; Kamakura Japan
5. Department of Pathology; Saitama Medical Center; Saitama Medical University; Saitama Japan
6. Department of Pathology; Doai Memorial Hospital; Tokyo Japan
7. Department of Neurology; Saitama Medical Center; Saitama Medical University; Saitama Japan
8. Department of Pathology; Kanazawa Medical University; Kanazawa Japan
9. Department of Hematology and Immunology; Kanazawa Medical University; Kanazawa Japan