Immunocompetence assessment.
D000917:Antibody Formation; D006801:Humans; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007108:Immune Tolerance; D007111:Immunity, Cellular; D009748:Nutrition Disorders / Q000276:immunology* / Q000401:mortality; D013601:T-Lymphocytes / Q000276:immunology