title: Phenomenon of the gap in atrioventricular conduction in the human heart.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D001285:Atropine / Q000494:pharmacology; D002037:Bundle-Branch Block / Q000503:physiopathology; D006328:Cardiac Catheterization; D005117:Cardiac Complexes, Premature / Q000503:physiopathology*; D003327:Coronary Disease / Q000503:physiopathology; D006327:Heart Block / Q000503:physiopathology; D006329:Heart Conduction System / Q000187:drug effects / Q000503:physiopathology*; D006801:Humans; D009431:Neural Conduction; D010138:Pacemaker, Artificial; D013997:Time Factors
chemical_list: D000319:Adrenergic beta-Antagonists; D001285:Atropine