%0 Journal Article %T Patent ductus arteriosus with right-to-left shunt can be diagnosed by direct visualization of microbubbles passage into descending aorta during contrast echocardiography %A Demirbağ, R. %A Yılmaz, R. %J The Anatolian Journal of Cardiology %D 2005 %V 5 %P 255-256 %R