Gestational age:Time:Pt:^Fetus:Qn:Estimated from last menstrual period
gestational age:time:pt:^fetus:qn:estimated from last menstrual period
Gestational age:Time:To identify measures at a point in time:^Fetus:Quantitative:Estimated from last menstrual period
gestational age:time:to identify measures at a point in time:^fetus:quantitative:estimated from last menstrual period