title: Relationship between ovarian follicles and peripheral levels of sex steroid hormones during early midpregnancy in cows.
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D004967:Estrogens / Q000097:blood*; D005260:Female; D006080:Ovarian Follicle / Q000502:physiology*; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000097:blood / Q000502:physiology*; D011374:Progesterone / Q000097:blood*
chemical_list: D004967:Estrogens; D011374:Progesterone