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Localization of alpha-1-fetoprotein (AFP) in bile ductular cells (oval cells) of rat liver on day 3 after GalN injury. (a) AFP stained section counterstained with Mayer's haematoxylin, note AFP immunoreactive cells in ductular reaction areas in portal and in periportal area (original magnification ×160). (b) AFP-positive bile ductular cells (original magnification ×160).
