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Univariate analysis for NSCLC patients
*Log-rank test; †highly suspicious of EGFR mutation, clinically based on adenocarcinoma histology and never-smoking history. NSCLC, non-small cell lung cancer; CSF, cerebrospinal fluid; EGFR-TKI, epidermal growth factor receptor-tyrosine kinase inhibitor; LM, leptomeningeal metastasis; MS, median survival.
