Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from TC.Nimrod 1986
gestational age:time:pt:^fetus:qn:us+estimated from tc.nimrod 1986
Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from TC.Nimrod 1986
gestational age:time:pt:^fetus:qn:us+estimated from tc.nimrod 1986