title: Use of norethisterone for suppression of oestrus in racing greyhounds.
mesh_terms: D000818:Animals; D003280:Contraceptives, Oral, Synthetic / Q000494:pharmacology*; D004285:Dogs / Q000502:physiology*; D004971:Estrus / Q000187:drug effects*; D005260:Female; D009640:Norethindrone / Q000494:pharmacology*; D012420:Running
chemical_list: D003280:Contraceptives, Oral, Synthetic; D009640:Norethindrone