during pregnancy it was significantly higher ( 1.48 +/- 0.31 , 1.91 +/- 0.25 and 2.20 +/- 0.36 mg/l during the 1st , 2nd and 3rd trimesters , respectively ) and 5 weeks postpartum it was still higher ( 1.09 +/- 0.17 mg/l ) than in the nonpregnant women .
C0032961
pregnancy
C0032981
3rd trimesters