Perimeter:Len:Pt:Abdomen^Fetus:Qn:US.estimated from Merz 1988
perimeter:len:pt:abdomen^fetus:qn:us.estimated from merz 1988
Perimeter:Len:Pt:Abdomen^Fetus:Qn:US.estimated from Merz 1988
perimeter:len:pt:abdomen^fetus:qn:us.estimated from merz 1988