title: Fertilization in the ewe following multiple ovulation and uterine insemination.
mesh_terms: D000818:Animals; D002452:Cell Count; D005260:Female; D005306:Fertilization; D006736:Horses; D007315:Insemination, Artificial; D010060:Ovulation / Q000187:drug effects; D010063:Ovum; D010902:Pituitary Gland; D011374:Progesterone / Q000494:pharmacology; D012756:Sheep / Q000502:physiology*; D013997:Time Factors; D014020:Tissue Extracts / Q000494:pharmacology; D014599:Uterus
chemical_list: D014020:Tissue Extracts; D011374:Progesterone