Head circumference/Abdominal circumference:LenRto:Pt:^Fetus:Qn:US+Estimated from Campbell 1977
head circumference/abdominal circumference:lenrto:pt:^fetus:qn:us+estimated from campbell 1977
Head circumference/Abdominal circumference:Length Ratio:To identify measures at a point in time:^Fetus:Quantitative:Ultrasound+Estimated from Campbell 1977
head circumference/abdominal circumference:length ratio:to identify measures at a point in time:^fetus:quantitative:ultrasound+estimated from campbell 1977