1. Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
2. Saitama Medical Center, Jichi Medical University
3. Tokyo Metropolitan Cancer and Infectious Diseases Center
4. Yokohama City University
5. Keio University School of Medicine
6. The Institute of Medical Science, The University of Tokyo
7. Department of Hematology, Chiba University Hospital
8. Chiba University Hospital
9. Jichi Medical University Saitama Medical Center
10. Yokohama City University Medical Center
11. Chiba Aoba Municipal Hospital
12. Kanagawa Cancer Center
13. Jichi Medical University
14. Tokyo Medical and Dental University
15. Saitama Medical Center, Saitama Medical University
16. Dokkyo Medical University
17. Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital
18. Nihon University School of Medicine
19. Institute of Medical Science, University Tokyo