title: Effect of homogenized embryos on IUD-induced luteal regression in the ewe.
mesh_terms: D000818:Animals; D003338:Corpus Luteum / Q000187:drug effects / Q000254:growth & development / Q000502:physiology*; D004622:Embryo, Mammalian; D004971:Estrus / Q000187:drug effects; D005260:Female; D007434:Intrauterine Devices / Q000662:veterinary*; D009929:Organ Size; D010053:Ovary / Q000187:drug effects; D011247:Pregnancy; D012756:Sheep / Q000502:physiology*; D014020:Tissue Extracts / Q000494:pharmacology*
chemical_list: D014020:Tissue Extracts