Keywords: |
adult; cancer chemotherapy; cancer survival; clinical article; aged; cancer surgery; survival rate; clinical feature; clinical trial; fluorouracil; adjuvant therapy; cancer radiotherapy; combined modality therapy; cancer staging; follow up; preoperative evaluation; adenocarcinoma; metastasis; phase 2 clinical trial; radiotherapy; organ preservation; phase 1 clinical trial; rectum carcinoma; rectal neoplasms; colon; radiation sickness; anastomosis, surgical; rectal cancer; middle age; preoperative radiotherapy; anus; colorectal anastomosis; human; male; female; priority journal; article; support, non-u.s. gov't
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