1. Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto 602‑8566, Japan
2. Department of Hematology, Aiseikai Yamashina Hospital, Kyoto 607‑8086, Japan
3. Department of Hematology, Japan Community Health Care Organization Kyoto Kuramaguchi Medical Center, Kyoto 603‑8151, Japan
4. Department of Hematology, Fukuchiyama City Hospital, Fukuchiyama, Kyoto 620‑0056, Japan
5. Department of Hematology, Japanese Red Cross Kyoto Daiichi Hospital, Kyoto 605‑0981, Japan
6. Department of Hematology, Japanese Red Cross Kyoto Daini Hospital, Kyoto 602‑8031, Japan
7. Department of Hematology, Matsushita Memorial Hospital, Moriguchi, Osaka 570‑8540, Japan