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Fig. 3.

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Results of H&E staining and immunohistochemistry staining of poorly differentiated lung adenocarcinoma (200×). (A) H&E, (B) Napsin A (weakly +), (C): TTF-1 (weakly +), (D): CK7 (strong +), (E) P40 (-) are classified as lung adenocarcinoma. Abbreviation: H&E, hematoxylin and eosin.
Korean J Clin Lab Sci 2023;55:16-28
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