Gestational age:Time:Pt:^Fetus:Qn:US.estimated from AXT.Shinozuka 1996
gestational age:time:pt:^fetus:qn:us.estimated from axt.shinozuka 1996
Gestational age estimated from AXT by method of Shinozuka 1996 (US)
gestational age estimated from axt by method of shinozuka 1996 (us)