under basal conditions t ( 203 +/- 30 ( se ) ng/dl ) was quantitatively by far the most important serum steroid , followed by progesterone ( p ) ( 76.5 +/- 12 ng/dl ) , 17-hydroxyprogesterone ( 170hp ) ( 37.3 +/- 4.1 ng/dl ) , androstenedione ( a ) ( 24.6 +/- 2.5 ng/dl ) and pregnenolone ( p5 ) ( 22.9 +/- 4 ng/dl ) .
C0033308
progesterone
C0020387
17-hydroxyprogesterone