to analyze for the possible embryonic effects upon endometrial estrogen synthesis ( estrone , estradiol , estrone sulfate and estradiol sulfate ) , endometrial samples from each horn of unilaterally tubal-ligated estrous , pseudopregnant and pregnant rabbits were incubated with [ 3h ] progesterone or [ 3h ] androstenedione on days 0 , and 3 to 8 postcoitum .
C0014942
estrone
C0059668
estrone sulfate