title: Light and electron microscopic studies on the development of periportal bile ducts of the human embryo.
mesh_terms: D001653:Bile Ducts, Intrahepatic / Q000196:embryology* / Q000648:ultrastructure; D006801:Humans; D008099:Liver / Q000196:embryology / Q000648:ultrastructure; D008854:Microscopy, Electron