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. 2017 Feb 15;8(4):597–605. doi: 10.7150/jca.16959

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Kaplan-Meier PFS (A) and OS (B) curves for the NSCLC patients with bone metastasis between exon 19 and with 21 mutation. Abbreviations: PFS, The disease-free survival; OS: the overall survival; NSCLC: non-small-cell lung cancer.