[1] Toranomon Hosp, Dept Hematol, Minato Ku, Tokyo 1058470, Japan
[2] Tokyo Univ Hosp, Dept Hematol & Oncol, Tokyo, Japan
[3] Tokyo Univ Hosp, Dept Pathol, Tokyo, Japan
[4] Inoue Mem Hosp, Dept Clin Lab & Pathol, Chiba, Japan
[5] Aichi Canc Ctr, Lab Chemotherapy, Aichi, Japan