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Immunohistochemistry for K19 and clinical outcomes of 125 HCCs. a Examples of immunohistochemistry staining of K19 in HCCs classified into 5 groups according to the percentage of tumor cells with positive staining. b Kaplan-Meier survival curves for disease-free survival (DFS), overall survival (OS), and extrahepatic metastasis (EHM) recurrence-free survival (EFS) according to K19 expression status.
