title: Proceedings: Peripheral blood levels of progesterone in pony mares during the oestrous cycle and early pregnancy.
mesh_terms: D000818:Animals; D004971:Estrus; D005260:Female; D005313:Fetal Death / Q000662:veterinary; D006736:Horses / Q000502:physiology*; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000097:blood*
chemical_list: D011374:Progesterone