| Affiliation: | (1) Department of Hematology, Teikyo University Chiba Medical Center, 3426-3, Anesaki, Ichihara, Chiba 299-0111, Japan;(2) Department of Clinical Trial Data Management, Graduate School of Medicine, The University of Tokyo Hospital, Tokyo, Japan;(3) Department of Hematology, Tsukuba Memorial Hospital, Tsukuba, Japan;(4) Division of Exploratory Research, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan;(5) Division of Social Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan |
