plasma crh concentrations progressively increased during pregnancy ( second trimester , 35.4 +/- 5.9 pg/ml ( n = 39 ) ; early third trimester ( 28-34 weeks ) , 263 +/- 41 pg/ml ( n = 14 ) ; late third trimester ( 35-40 weeks ) , 800 +/- 163 pg/ml ( n = 20 ) ] .
C0032961
pregnancy
C0032980
second trimester