Vena contracta diameter.diastole:Len:Pt:Aortic valve:Qn:US.2D+doppler
vena contracta diameter.diastole:len:pt:aortic valve:qn:us.2d+doppler
Aortic valve Vena contracta diameter during diastole by US.2D+doppler
aortic valve vena contracta diameter during diastole by us.2d+doppler