1. Department of Radiation Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
2. Department of Internal Medicine, Biomedical Research Center, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
3. Department of Health Risk Control, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
4. Takashi Nagai Memorial International Hibakusha Medical Center, Nagasaki University Hospital, Nagasaki, Japan.
5. Nagasaki University Research Center for Genomic Instability and Carcinogenesis (NRGIC), Nagasaki, Japan.