Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from BPD.Sabbagha 1978
gestational age:time:pt:^fetus:qn:us+estimated from bpd.sabbagha 1978
Gestational age estimated from Biparietal diameter on US by Sabbagha 1978 method
gestational age estimated from biparietal diameter on us by sabbagha 1978 method