TY - JOUR TI - Patent ductus arteriosus with right-to-left shunt can be diagnosed by direct visualization of microbubbles passage into descending aorta during contrast echocardiography AU - Demirbağ, R. AU - Yılmaz, R. JO - The Anatolian Journal of Cardiology PY - 2005 VL - 5 SP - 255 EP - 256 DO - ER -