title: Letter: Status report: feline leukemia.
mesh_terms: D000818:Animals; D002371:Cat Diseases / Q000209:etiology*; D002415:Cats; D005065:Euthanasia; D006801:Humans; D007938:Leukemia / Q000209:etiology / Q000662:veterinary*; D005256:Leukemia Virus, Feline