1. Division of Hematology and Rheumatology, Department of Medicine; Nihon University School of Medicine; Tokyo Japan
2. Department of Hematology; Yokohama City University Medical Center; Kanagawa Japan
3. Department of Hematology; National Hospital Organization, Mito Medical Center; Ibaraki Japan
4. Division of Hematology and Oncology; Japanese Red Cross Society, Narita Red Cross Hospital; Narita Japan
5. Department of Hematology, Faculty of Medicine; University of Tsukuba; Ibaraki Japan
6. Division of Hematology, Department of Internal Medicine; Keio University School of Medicine; Tokyo Japan
7. Department of Hematology and Clinical Oncology; Kagawa Prefectural Central Hospital; Kagawa Japan
8. Department of Hematology; National Hospital Organization Disaster Medical Center; Tokyo Japan
9. Department of Hematology; Ohme Municipal General Hospital; Tokyo Japan
10. Division of Hematology, Department of Internal Medicine; Nippon Medical School; Tokyo Japan
11. Department of Hematology; Tokyo Medical University; Tokyo Japan
12. Department of Hematology; Japanese Red Cross Shizuoka Hospital; Shizuoka Japan
13. Division of Clinical Oncology and Hematology, Department of Internal Medicine; Jikei University School of Medicine; Tokyo Japan
14. Division of Hematology and Oncology; Gunma Prefectural Cancer Center; Gunma Japan
15. Department of Hematology; Tokyo Metropolitan Tama Synthesis Medical Center; Tokyo Japan
16. Department of Biomedical Statistics and Bioinformatics; Kyoto University Graduate School of Medicine; Kyoto Japan
17. Tokai Central Hospital; Gifu Japan
18. Hematology Division; Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital; Tokyo Japan