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OS and LCSS of LCBM patients underwent primary lung tumor surgery or not after PSM adjustment (Stratified by pathological type). A: OS of LCBM patients with different pathological types; B: LCSS of LCBM patients with different pathological types. PSM: propensity score matching, OS: overall survival, LCSS: lung cancer specific survival, LCBM: lung cancer brain metastases.
