Cardiac output:VRat:Pt:Mitral valve:Qn:US.doppler
cardiac output:vrat:pt:mitral valve:qn:us.doppler
Cardiac output:Volume Rate:To identify measures at a point in time:Mitral valve:Quantitative:Ultrasound.doppler
cardiac output:volume rate:to identify measures at a point in time:mitral valve:quantitative:ultrasound.doppler