A wave duration:Time:Pt:Pulmonary vein:Qn:US.doppler.PW
a wave duration:time:pt:pulmonary vein:qn:us.doppler.pw
A wave duration:Time:Pt:Pulmonary vein:Qn:US.doppler.PW
a wave duration:time:pt:pulmonary vein:qn:us.doppler.pw