[Cytological diagnosis of lung cancer--direct method and its cytological findings].
D001999:Bronchoscopy; D003581:Cytodiagnosis; D005336:Fiber Optic Technology; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000473:pathology; D008297:Male; D008722:Methods; D008875:Middle Aged