QRS to S wave.max:Time:Pt:Heart.ventricle:Qn:US
qrs to s wave.max:time:pt:heart.ventricle:qn:us
QRS to S wave.max:Time:To identify measures at a point in time:Heart.ventricle:Quantitative:Ultrasound
qrs to s wave.max:time:to identify measures at a point in time:heart.ventricle:quantitative:ultrasound