title: Diminished helper-T-lymphocyte function in cancer patients.
mesh_terms: D000328:Adult; D000368:Aged; D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D008213:Lymphocyte Activation; D008211:Lymphocyte Cooperation; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology