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The morphologies (a) and gene expression profile (b) of PDX-derived CCA cell lines KKK-D-49, KKK-D068, KKK-D131, and KKK-D138. Huh7, KKU-100, KKU-055, and KKU-213 were used as references. WD: well differentiated subtype; AS: adenosquamous subtype; 1: cytokeratin 7 (CK7); 2: CK19, 3: γ-glutamyl transferase (GGT); 4: α-fetoprotein (AFP); 5: albumin (ALB).
