title: [Recording of the sinus node electrogram].
mesh_terms: D000200:Action Potentials; D000818:Animals; D006328:Cardiac Catheterization; D004285:Dogs; D004562:Electrocardiography; D006801:Humans; D008722:Methods; D011817:Rabbits; D012849:Sinoatrial Node / Q000502:physiology*