title: [Atrioventricular block--electrocardiography of the bundle of His and classification of atrioventricular block].
mesh_terms: D000328:Adult; D000368:Aged; D002036:Bundle of His; D005260:Female; D006327:Heart Block / Q000145:classification / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged