title: Ultrastructural basis for pseudoislet formation in cultivated isolated islet cells from neonatal rats.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002450:Cell Communication; D002478:Cells, Cultured; D007365:Intercellular Junctions / Q000648:ultrastructure; D007515:Islets of Langerhans / Q000166:cytology / Q000648:ultrastructure*; D051381:Rats