title: Observations on the mechanism of one type of so-called supernormal A-V conduction.
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000209:etiology*; D004562:Electrocardiography; D004594:Electrophysiology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D012849:Sinoatrial Node / Q000503:physiopathology