echocardiography: concentric regurgitation of prosthetic right atrioventricular valve
echocardiography: concentric regurgitation of prosthetic right atrioventricular valve
echocardiography: concentric regurgitation of prosthetic right atrioventricular valve (procedure)
echocardiography: concentric regurgitation of prosthetic right atrioventricular valve (procedure)