Long axis.mean:Len:Pt:Femur.diaphysis^Fetus:Qn:Estimated from gestational age.Merz 1987
long axis.mean:len:pt:femur.diaphysis^fetus:qn:estimated from gestational age.merz 1987
Fet Femur Length Est from GA.Merz87
fet femur length est from ga.merz87