Letter: Immune status, chemotherapy, and lung cancer.
D002294:Carcinoma, Squamous Cell / Q000188:drug therapy / Q000276:immunology* / Q000401:mortality; D006801:Humans; D006968:Hypersensitivity, Delayed; D007153:Immunologic Deficiency Syndromes / Q000150:complications; D008175:Lung Neoplasms / Q000188:drug therapy / Q000276:immunology* / Q000401:mortality