1 Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
2 Department of Electron Microscope, BML Research Institute Inc, 1361-1 Matoba, Kawagoe-shi, Saitama, 350-1101, Japan.
3 Department of Clinical Laboratory, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
4 Department of Pathology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
5 Department of Pathology, Japanese Red Cross Narita Hospital, 90-1 Iida-Cho, Narita-shi, Chiba, 286-8523, Japan.
6 Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan. kurokawa@m.u-tokyo.ac.jp.
7 Department of Cell Therapy and Transplantation Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan. kurokawa@m.u-tokyo.ac.jp.