title: [Quantitative and ultrastructural findings in the atrioventricular node of cattle].
mesh_terms: D000818:Animals; D001283:Atrioventricular Node / Q000648:ultrastructure*; D002417:Cattle; D006329:Heart Conduction System / Q000648:ultrastructure*; D008854:Microscopy, Electron
vernacular_title: Quantitative und ultrastrukturelle Befunde am AV-Knoten des Rindes