title: [Origin of the apical beat and significance of systolic changes in the apexcardiogram].
mesh_terms: D000293:Adolescent; D000328:Adult; D000790:Angiocardiography; D001017:Aortic Coarctation / Q000503:physiopathology; D001021:Aortic Valve; D001022:Aortic Valve Insufficiency / Q000503:physiopathology; D001024:Aortic Valve Stenosis / Q000503:physiopathology; D006332:Cardiomegaly / Q000503:physiopathology; D002312:Cardiomyopathy, Hypertrophic / Q000503:physiopathology; D002648:Child; D006352:Heart Ventricles / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D007702:Kinetocardiography; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000503:physiopathology; D011312:Pressure; D011677:Punctures; D016276:Ventricular Function
vernacular_title: Zur Entstehung des Herzspitzenstosses und Deutung systolischer Formveränderungen des Apexkardiogrammes.