Perimeter:Len:Pt:Abdomen^Fetus:Qn:US.derived from Chitty 1994
perimeter:len:pt:abdomen^fetus:qn:us.derived from chitty 1994
Fetal Abdomen Circumference derived by method of Chitty 1994 (US)
fetal abdomen circumference derived by method of chitty 1994 (us)