Cancer and the aging process.
D000375:Aging; D000818:Animals; D002371:Cat Diseases / Q000276:immunology*; D002415:Cats; D004283:Dog Diseases / Q000276:immunology*; D004285:Dogs; D006706:Homeostasis; D007165:Immunosuppression Therapy; D008264:Macrophages / Q000276:immunology; D009369:Neoplasms / Q000276:immunology / Q000662:veterinary*; D012306:Risk; D013601:T-Lymphocytes / Q000276:immunology