title: IMMUNOLOGICAL DEFECT IN AGED POPULATION AND ITS RELATIONSHIP TO CANCER.
mesh_terms: D000293:Adolescent; D000486:Allergy and Immunology; D002908:Chronic Disease; D005853:Geriatrics; D006801:Humans; D006967:Hypersensitivity; D006968:Hypersensitivity, Delayed; D009369:Neoplasms / Q000276:immunology*; D009578:Nitrobenzenes; D012882:Skin Tests; D014376:Tuberculosis
chemical_list: D009578:Nitrobenzenes
keywords: ADOLESCENCE; CHRONIC DISEASE; GERIATRICS; HYPERSENSITIVITY, DELAYED; IMMUNOLOGY; NEOPLASM IMMUNOLOGY; NEOPLASMS; NITROBENZENES; SKIN TESTS; TUBERCULOSIS