Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from CRL.Robinson 1975
gestational age:time:pt:^fetus:qn:us+estimated from crl.robinson 1975
Gestational age:Time:Pt:^Fetus:Qn:US+Estimated from CRL.Robinson 1975
gestational age:time:pt:^fetus:qn:us+estimated from crl.robinson 1975