Imamura General Hospital - Department of Hematology, Jichi Medical University Saitama Medical Center - Division of Hematology, Osaka International Cancer Institute - Department of Hematology, Tokyo Women's Medical University - Department of Hematology, Shimane University Hospital Cancer Center, Imamura General Hospital - Department of Hematology, Hamanomachi Hospital - Department of Hematology, University of the Ryukyus - Second Department of Internal Medicine, Endocrinology, Diabetes and Metabolism, Hematology and Rheumatology, Hyogo Medical University Hospital - Department of Hematology, Asahikawa City Hospital - Department of Hematology, Okayama University Hospital - Department of Hematology and Oncology, Kyushu University Hospital - Hematology, Oncology & Cardiovascular medicine, National Hospital Organization Kyushu Cancer Center - Department of Hematology and Cell Therapy, Toranomon Hospital - Department of Hematology, National Cancer Center Hospital - Department of Hematopoietic Stem Cell Transplantation, Komagome Hospital - Hematology Division, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital - Department of Hematology, Kyoto University - Department of Hematology and Oncology, Jichi Medical University - Division of Hematology, National Cancer Center Hospital - Department of Hematopoietic Stem Cell Transplantation, Japanese Data Center for Hematopoietic Cell Transplantation and Oita University - Department of Medical Oncology and Hematology