[Mass screening of lung cancer by cytological examination of the sputum].
D000328:Adult; D000368:Aged; D003581:Cytodiagnosis; D005260:Female; D006801:Humans; D007564:Japan; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D013183:Sputum