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Immunobiological characteristics of case 1, Immunohistochemical analysis of lung cancer tissue. (a) Hematoxylin and eosin staining (200×); (b) ALK Ventana (DF53, 200×), (c) positive staining for CK56 (200×), (d) positive staining for P40(200×), (e) negative staining for TTF‐1 (200×), (f) positive staining for CK7(200×), (g) Naspin‐A (200×), (h) positive staining for P63 (200×)
