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Kaplan–Meier curves demonstrating overall survival of patients with LUSC and LUAD according to PD‐L1 expression status (LUSC (a), LUAD (d)), CD47 expression status (LUSC (b), LUAD (e)), and PD‐L1/CD47 co‐expression status (LUSC (c), LUAD, (f)). CD47, cluster of differentiation 47; CI, confidence interval; HR, hazard ratio; LUAD, lung adenocarcinoma; LUSC, lung squamous cell carcinoma; PD‐L1, programmed cell death‐ligand 1
