1. Department of Hematology, National Kyushu Cancer Center, Fukuoka, Japan;
2. Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan;
3. Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan;
4. Clinical Research Institute, Cancer Genetics Laboratory, National Kyushu Cancer Center, Fukuoka, Japan;
5. Department of Radiation Biology, Institute of Radiation Emergency Medicine, Hirosaki University, Aomori, Japan