1. Department of Hematology, Juntendo University School of Medicine, Japan
2. Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Japan
3. Department of Hematology, Japan Community Health Care Organization Saitama Medical Center, Japan
4. Department of Hematology and Infectious Diseases, Kumamoto University Hospital, Japan
5. Department of Hematology, Juntendo University Urayasu Hospital, Japan
6. Department of Hemato-oncology, Saitama Medical University International Medical Center, Japan
7. Department of Hematology, Yokohama Municipal Citizen's Hospital, Japan
8. Department of Hematology, Saiseikai Yokohama Nanbu Hospital, Japan
9. Department of Hematology, Juntendo University Nerima Hospital, Japan
10. Department of Hematology, Saitama Medical Center, Saitama Medical University, Japan