[Screening of early lung cancer: results of the Miyagi study].
D001707:Biopsy, Needle; D003581:Cytodiagnosis; D004724:Endoscopy; D006801:Humans; D007564:Japan; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000453:epidemiology*; D008400:Mass Chest X-Ray; D008403:Mass Screening / Q000379:methods*; D012907:Smoking