plasma concentrations of testosterone ( t ) , 17 beta estradiol ( e2 ) , progesterone ( p ) and 17-hydroxyprogesterone ( 17-oh p ) were measured on blood samples drawn before and then every 24 h until the 96th h following a single dose of human chorionic gonadotropin ( hcg , 2,000 iu im ) .
C0033308
progesterone
C0020387
17-hydroxyprogesterone