title: Dystrophia cordis myotonica studied by serial histology of the pacemaker and conducting system.
mesh_terms: D000368:Aged; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006327:Heart Block / Q000473:pathology*; D006329:Heart Conduction System / Q000473:pathology*; D006652:Histological Techniques; D006801:Humans; D009206:Myocardium / Q000473:pathology*; D009223:Myotonic Dystrophy / Q000473:pathology*