Nodal status after preoperative chemoradiotherapy (CRT) in locally advanced rectal cancer: Prognostic evaluation of number of resected lymph nodes (LNs), metastatic resected LNs, and LN ratio in the National Cancer Institute of Brazil.

2017 
e14568 Background: For accurate colon cancer staging, 12 or more LNs must be resected. However, in rectal cancer, preoperative CRT can decrease the number of evaluable LNs, and the cutoff for a min...
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