Is a systematic annual chest film useful?
D002283:Carcinoma, Bronchogenic / Q000000981:diagnostic imaging*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008400:Mass Chest X-Ray; D014374:Tuberculin Test; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging*