title: Clinical applications of Doppler echocardiography combined with two-dimensional cardiac imaging--a review.
mesh_terms: D002302:Cardiac Output; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis; D004452:Echocardiography / Q000379:methods*; D006801:Humans; D011666:Pulmonary Valve Stenosis / Q000175:diagnosis