1 Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan. Electronic address: hyasuda@juntendo.ac.jp.
2 Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan.
3 Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan; Department of Cell Therapy and Transfusion Medicine, Juntendo University School of Medicine, Tokyo, Japan.
4 Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan.