the presence of the following oestrogens in pregnancy faeces was established : oestriol , oestrone , oestradiol-17 beta , 16-epioestriol , 17-epioestriol , 16 alpha-hydroxyoestrone , 16-oxo-oestradiol-17 beta , 15 alpha-hydroxyoestrone and 15 alpha-hydroxyoestradiol-17 beta .
C0032961
pregnancy
C0014912
oestradiol-17 beta