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Representative example of a tumor-bearing pouch pretreatment (Left) and 14 d posttreatment (Right) with 5 Gy absorbed dose to precancerous tissue. Tumor 1 (1.3 mm3) and tumor 2 (7 mm3) exhibited CR, whereas tumor 3 (17.9 mm3) exhibited PR, with a reduction in volume to 6.6 mm3. Precancerous pouch tissue surrounding tumor exhibited grade 1 mucositis before and after treatment.
