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PFK1 expression is associated with the response to radiation in rectal cancer patients. A. Photomicrographs of PFK1 in rectal cancer tissues. B. Immunohistochemistry score of PFK1 expression in the radiation-sensitive and radiation-resistant groups. S, section of a radiation-sensitive tissue sample; R, section of a radiation-resistant tissue sample. CRC, colorectal cancer; PFK1, phosphofructokinase-1. **P < 0.01.
