in order to examine the relation between breast development and hormone levels , serum levels of hormones including lh , fsh , prl , progesterone , 17 alpha oh-progesterone , estradiol ( e2 ) , pregnenolone , pregnenolone-sulfate , 17 alpha oh-pregnenolone , cortisol , dehydroepiandrosterone ( dha ) , dehydroepiandrosterone-sulfate ( dha-s ) , testosterone and delta 4-androstenedione were measured by ria in 162 puberal girls aged 9 to 17 years .
C0373704
pregnenolone
C0376260
17