the hypotheses that intrahepatic bile ducts are derived either by a transformation of periportal liver cells or by dichotomous branching of the extrahepatic bile ducts were investigated in fetal and postnatal rat livers by histological and immunohistochemical methods using an antiserum to prekeratin which , in the liver , binds to biliary epithelial cells ( bec ) .
C0005401
intrahepatic bile ducts
C0023884
liver