[Electron microscope study of bile duct structure].
D000818:Animals; D001652:Bile Ducts / Q000166:cytology*; D001653:Bile Ducts, Intrahepatic / Q000166:cytology; D004285:Dogs; D006500:Hepatic Duct, Common / Q000166:cytology; D006801:Humans; D008854:Microscopy, Electron; D051381:Rats