Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HOMANICS GE,Effects of progesterone and estradiol-17β on uterine secretion of prostaglandin F_<2α> in response to oxytocin in ovariectomized ewes,Biol Reprod,,,1988,38,,723-728,https://cir.nii.ac.jp/crid/1570291225785225600,