in midtrimester pregnancy , amniotic fluid t ( aft ) was 165.2 +/- 15.4 pg . per millitier in pregnancies with a male fetus and was significantly higher ( p = less than 0.001 ) than in pregnancies with a female fetus ( mean +/- s.e . = 27.6 +/- 2.6 pg . per millitier ) .
C0032980
midtrimester
C0032961
pregnancies