Perimeter:Len:Pt:Abdomen^Fetus:Qn:US.estimated from Merz 1988
perimeter:len:pt:abdomen^fetus:qn:us.estimated from merz 1988
Fetal Abdomen Circumference estimated from gestational age by method of Merz 1988 (US)
fetal abdomen circumference estimated from gestational age by method of merz 1988 (us)