When the presence of lymphatic permeation (ly0 versus ly1–2) was enrolled in multivariate analyses instead of the presence of extratumoral lymphatic permeation (ly0–1 versus ly2), it did not reach statistical significance ( p = 0.07; hazard ratio, 1.27; 95% confidence intervals, 0.98–1.64).
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Impact of extratumoral lymphatic permeation on postoperative survival of non-small-cell lung cancer patients.
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0.0700
0.0700