title: [Echocardiography and its practical use].
mesh_terms: D016275:Atrial Function; D002648:Child; D004452:Echocardiography / Q000379:methods*; D006321:Heart / Q000502:physiology; D006331:Heart Diseases / Q000175:diagnosis / Q000503:physiopathology; D006351:Heart Valves / Q000502:physiology; D006801:Humans; D009200:Myocardial Contraction; D016276:Ventricular Function
vernacular_title: Echokardiografia i jej praktyczne zastosowanie.