the influence of estradiol-17 beta ( e2 ) or catechol estradiols [ 4-hydroxyestradiol-17 beta ( 4-oh-e2 ) or 2-hydroxyestradiol-17 beta ( 2-oh-e2 ) ] on prostaglandin ( pg ) production in the rabbit blastocyst and endometrial cell in vitro on day 6 of pregnancy ( 144 h postcoitum ) was studied .
C0014912
estradiol-17 beta
C0032961
pregnancy