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. 2013 Aug 19;8(8):e73238. doi: 10.1371/journal.pone.0073238

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© 2013 Zhang et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Y axis, the mean and 95% confidence interval of overall survival (month). X axis, A. different AJCC N stage with 7 above lymph nodes resected or not; B. different LNR stage with 7 above lymph nodes resected or not.