a number of steroids were measured in blood plasma samples by radioimmunoassay ( 17-hydroxypregnenolone , 17-hydroxyprogesterone , pregnenolone , testosterone , dihydrotestosterone , progesterone , 20alpha-dihydroprogesterone , oestone , oestradiol ) or competitive protein binding ( cortisol ) techniques .
C0033308
progesterone
C0012311
dihydroprogesterone