title: Atrioventricular block and intraventricular block; analysis by His bundle electrogram and myocardial biopsy.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002036:Bundle of His / Q000503:physiopathology*; D002648:Child; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000473:pathology; D006327:Heart Block / Q000473:pathology* / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology*