Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from FL.Hansmann 1985
gestational age:time:pt:^fetus:qn:us+estimated from fl.hansmann 1985
Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from FL.Hansmann 1985
gestational age:time:pt:^fetus:qn:us+estimated from fl.hansmann 1985