Similarly, in the pathologic response study, although the TNM downstaging rate did not reach statistical significance in the longer interval group, the data analysis presented a trend towards an increased TNM downstaging rate in patients who underwent surgery > 9 wk after chemoradiotherapy (group A, 29.5% vs group B, 34.8%, P = 0.129).
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Impact of interval between neoadjuvant chemoradiotherapy and surgery in rectal cancer patients.
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