to study the steroidal profiles in pregnancy associated with iugr , maternal serum steroids which included pregnenolone ( p5 ) , 16 alpha oh-p5 , progesterone ( p4 ) and 16 alpha oh-p4 levels were measured by ria at 30-41 weeks of gestation and the levels were compared with those obtained from normal pregnancies .
C0032961
pregnancy
C0033308
progesterone