914 poster LATE RECTAL TOXICITY FOLLOWING IRRADIATION IN RATS - Doi, H.; Kamikonya, N.; Takada, Y.; Fujiwara, M.; Tsuboi, K.; Miura, H.; Inoue, H.; Tanooka, M.; Nakamura, T.; Shikata, T.; Tsujimura, T.; Hirota, S. (Radiotherapy & Oncology, 2011)