title: Large screening trial launched by NCI.
authors.forename: Barbara
authors.initials: B
authors.lastname: Boughton
mesh_terms: D023381:Endpoint Determination; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000401:mortality*; D008403:Mass Screening; D013902:Radiography, Thoracic; D016032:Randomized Controlled Trials as Topic; D014057:Tomography, X-Ray Computed / Q000379:methods*