title: [Use of external methods in the study of left ventricular myocardial function. Value of the 1st derivative of the apex cardiogram].
mesh_terms: D006321:Heart / Q000503:physiopathology*; D006331:Heart Diseases / Q000175:diagnosis*; D006352:Heart Ventricles; D006439:Hemodynamics; D006801:Humans; D006980:Hyperthyroidism / Q000175:diagnosis; D007702:Kinetocardiography; D008433:Mathematics
vernacular_title: Application des méthodes externes  l'étude de la fonction myocardique ventriculaire gauche Intérêt de la dérivée première du cardiogramme apexien