Blood flow velocity.systole.max/Blood flow velocity.diastole.max:VelRto:Pt:Pulmonary vein.right lower:Qn:US.doppler.derived
blood flow velocity.systole.max/blood flow velocity.diastole.max:velrto:pt:pulmonary vein.right lower:qn:us.doppler.derived
Blood flow velocity.systole.max/Blood flow velocity.diastole.max:VelRto:Pt:Pulmonary vein.right lower:Qn:US.doppler.derived
blood flow velocity.systole.max/blood flow velocity.diastole.max:velrto:pt:pulmonary vein.right lower:qn:us.doppler.derived