title: Echocardiographic features of non-rheumatic mitral insufficiency.
mesh_terms: D009202:Cardiomyopathies / Q000150:complications; D004452:Echocardiography; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000175:diagnosis* / Q000209:etiology; D008945:Mitral Valve Prolapse / Q000175:diagnosis*