Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from CRL.Shinozuka 1996
gestational age:time:pt:^fetus:qn:us+estimated from crl.shinozuka 1996
Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from CRL.Shinozuka 1996
gestational age:time:pt:^fetus:qn:us+estimated from crl.shinozuka 1996