title: Letter: Analysis of postextrasystolic beats in the diagnosis of idiopathic hypertrophic subaortic stenosis.
mesh_terms: D001794:Blood Pressure; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006334:Heart Function Tests; D006801:Humans; D011652:Pulmonary Circulation