Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from BPD.Hobbins 1983
gestational age:time:pt:^fetus:qn:us+estimated from bpd.hobbins 1983
Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from BPD.Hobbins 1983
gestational age:time:pt:^fetus:qn:us+estimated from bpd.hobbins 1983