title: Local steroid concentrating mechanism in the reproductive vasculature of the ewe.
mesh_terms: D000818:Animals; D001158:Arteries / Q000502:physiology*; D005260:Female; D010053:Ovary / Q000098:blood supply*; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D012756:Sheep; D014680:Veins / Q000502:physiology*
chemical_list: D011374:Progesterone