title: Efficiency control of embryo transfer by progesterone analysis in recipient heifers.
mesh_terms: D000818:Animals; D002417:Cattle; D004624:Embryo Transfer / Q000662:veterinary*; D005260:Female; D011247:Pregnancy; D011374:Progesterone / Q000097:blood*; D011379:Prognosis
chemical_list: D011374:Progesterone