in order to elucidate the effects of dehydroepiandrosterone sulfate ( dhas ) on softening and dilatation of the uterine cervix , changes of oestriol , 17 beta-oestradiol and progesterone levels in serum and cervix , bishop score and collagenase activity in the cervical tissue were assessed in pregnant women before and after treatment with dhas .
C0042149
uterine
C0007874
cervix