Perimeter:Len:Pt:Abdomen^Fetus:Qn:US.derived from Chitty 1994
perimeter:len:pt:abdomen^fetus:qn:us.derived from chitty 1994
Perimeter:Len:Pt:Abdomen^Fetus:Qn:US.derived from Chitty 1994
perimeter:len:pt:abdomen^fetus:qn:us.derived from chitty 1994