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. 2019 Jul 24;9:642. doi: 10.3389/fonc.2019.00642

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Copyright © 2019 Wang, Chen, Xi, Chen, Zhang, Wen, Huang, Yu, Wang, Zhang and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Kaplan–Meier curves of the survival estimates for patients who underwent lobectomy or sublobectomy. (A) Overall survival data from patients who underwent lobectomy or sublobectomy for stage I NSCLC. (B) Disease-free survival of patients who underwent lobectomy or sublobectomy for stage I NSCLC. NSCLC, non-small-cell lung cancer.