Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from TAD.Hansmann 1979
gestational age:time:pt:^fetus:qn:us+estimated from tad.hansmann 1979
Gestational age estimated from Transverse abdominal diameter on US by Hansmann 1979 method
gestational age estimated from transverse abdominal diameter on us by hansmann 1979 method