Affiliation: | 1. Department of Radiation Oncology, Institute of Biomedical & Health Sciences, Hiroshima University, Japan;2. Hiroshima High-Precision Radiotherapy Cancer Center, Japan;3. Department of Radiation Oncology, Niigata University Medical and Dental Hospital, Japan;4. Department of Radiation Oncology, Hiroshima Prefectural Hospital, Japan;5. Department of Radiation Oncology, Graduate School of Medicine, Yamaguchi University, Japan |