Blood flow velocity.systole.max/Blood flow velocity.diastole.max:VelRto:Pt:Pulmonary vein:Qn:US.doppler
blood flow velocity.systole.max/blood flow velocity.diastole.max:velrto:pt:pulmonary vein:qn:us.doppler
Pulmonary vein Maximum blood flow velocity during systole/Maximum blood flow velocity during diastole by US.doppler
pulmonary vein maximum blood flow velocity during systole/maximum blood flow velocity during diastole by us.doppler