title: Usefulness of tumor markers in serum and lung lavage.
mesh_terms: D000368:Aged; D002272:Carcinoembryonic Antigen / Q000032:analysis* / Q000097:blood; D002277:Carcinoma / Q000032:analysis; D018288:Carcinoma, Small Cell / Q000032:analysis; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D008168:Lung / Q000032:analysis*; D008175:Lung Neoplasms / Q000032:analysis; D008875:Middle Aged; D007507:Therapeutic Irrigation
chemical_list: D002272:Carcinoembryonic Antigen