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Multivariable Cox regression analyses and forest plots of prognostic factors of (A) OS and (B) CSS in NSCLC patients with BM. Abbreviation: OS: overall survival; CSS: cancer‐specific survival; NSCLC: non‐small cell lung cancer; BM: brain metastasis, HR: hazard ratio; 95% CI: 95% confidence interval, AD: adenocarcinoma; SCC: squamous cell carcinoma; LCC: large cell carcinoma
