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. 2018 Nov 21;97(47):e13168. doi: 10.1097/MD.0000000000013168

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Copyright © 2018 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial License 4.0 (CCBY-NC), where it is permissible to download, share, remix, transform, and buildup the work provided it is properly cited. The work cannot be used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc/4.0

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Forest plot of risk ratio for overall survival rate in pathological lymph node positive (pN+) patients. (A) The polled results for 3-year overall survival rate from randomized-controlled trial; (B) the polled results for 5-year overall survival rate from randomized-controlled trial; (C) the polled results for 3-year overall survival rate from non-randomized-controlled trials; (D) the polled results for 5-year overall survival rate from non-randomized-controlled trials. PRT = postoperative radiotherapy, SA = surgery alone.