Length.crown rump:Len:Pt:^Fetus:Qn:US.estimated from Rempen 1991
length.crown rump:len:pt:^fetus:qn:us.estimated from rempen 1991
Length.crown rump:Length:To identify measures at a point in time:^Fetus:Quantitative:Ultrasound.estimated from Rempen 1991
length.crown rump:length:to identify measures at a point in time:^fetus:quantitative:ultrasound.estimated from rempen 1991