1. Department of Hematology, National Cancer Center East Hospital, Kashiwa, Japan
2. Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Japan
3. Department of Hematology, Tokyo Medical University Hospital, Shinjuku City, Japan
4. Department of Research and Development, TL Genomics Inc., Koganei City, Japan
5. Department of Hematology, National Cancer Center East Hospital, 2-7-1 Kashiwano-ha, Kashiwa, Chiba 277-8577, Japan