Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from BPD.Merz 1988
gestational age:time:pt:^fetus:qn:us+estimated from bpd.merz 1988
Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from BPD.Merz 1988
gestational age:time:pt:^fetus:qn:us+estimated from bpd.merz 1988