Squires, E L Role of pregnant mare serum gonadotropin in luteal function of pregnant mares. [electronic resource] - American journal of veterinary research Jun 1979 - 889-91 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0002-9645 Subjects--Topical Terms: AnimalsCorpus Luteum--drug effectsFemaleGonadotropins, Equine--bloodHorses--physiologyIn Vitro TechniquesPregnancyProgesterone--blood