title: Ultrastructure of myocardium in familial heart block and peroneal muscular atrophy.
mesh_terms: D000328:Adult; D001706:Biopsy; D003593:Cytoplasm; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications / Q000235:genetics* / Q000473:pathology; D006339:Heart Rate; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008931:Mitochondria, Muscle; D009133:Muscular Atrophy / Q000150:complications / Q000235:genetics* / Q000473:pathology; D009206:Myocardium / Q000473:pathology*; D009210:Myofibrils / Q000166:cytology; D010873:Pinocytosis; D012508:Sarcolemma