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CLDN‐18 expression in HPV‐independent ECAs. (A) Gastric‐type ECA (HE); (B) strong CLDN18 (M) staining. (C) Endometrioid ECA (HE); (D) strong CLDN18 (M) staining. (E) Clear cell ECA (HE); (F) weak CLDN18 (M) staining (bar = 100 μm). ECA, endocervical adenocarcinoma; HE, hematoxylin and eosin; HPV, human papillomavirus.
