title: [Chronic atrio-ventricular blocks: etiology and epidemiology. Introduction].
mesh_terms: D001283:Atrioventricular Node / Q000503:physiopathology*; D002908:Chronic Disease; D006327:Heart Block / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans
vernacular_title: Les blocs auriculo-ventriculaires chroniques. Etiologie et épidémiologie. Introduction