Results of lung cancer screening programs in Japan.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000453:epidemiology* / Q000401:mortality; D008297:Male; D008400:Mass Chest X-Ray; D008403:Mass Screening; D008875:Middle Aged; D012907:Smoking; D013183:Sputum / Q000166:cytology*