title: Letter: Sterilising by immunisation.
mesh_terms: D000818:Animals; D004285:Dogs; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000276:immunology*; D007114:Immunization / Q000662:veterinary*; D008297:Male; D013245:Sterilization, Reproductive / Q000379:methods / Q000662:veterinary*
chemical_list: D007987:Gonadotropin-Releasing Hormone