Cardiac output ventricle right/Ventricle left:VRto:Pt:Circulatory system:Qn:US.doppler
cardiac output ventricle right/ventricle left:vrto:pt:circulatory system:qn:us.doppler
Pulmonary blood flow/Systemic blood flow by US.doppler
pulmonary blood flow/systemic blood flow by us.doppler