[T-cell subpopulation and natural killer cell activity in smokers and lung cancer patients].
D000328:Adult; D006801:Humans; D007694:Killer Cells, Natural / Q000276:immunology*; D008175:Lung Neoplasms / Q000276:immunology*; D008875:Middle Aged; D012907:Smoking / Q000276:immunology*; D013601:T-Lymphocytes / Q000145:classification*