title: Symposium on echocardiography (part I): introduction.
mesh_terms: D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000175:diagnosis; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis; D004452:Echocardiography; D006330:Heart Defects, Congenital / Q000175:diagnosis; D006346:Heart Septum; D006349:Heart Valve Diseases / Q000175:diagnosis; D006801:Humans; D008943:Mitral Valve; D008946:Mitral Valve Stenosis / Q000175:diagnosis; D009068:Movement; D011391:Prolapse; D011664:Pulmonary Valve / Q000503:physiopathology