Early diagnosis of carcinoma of the lung. Simultaneous screening with chest X-ray and sputum cytology.
D000367:Age Factors; D000368:Aged; D001955:British Columbia; D003581:Cytodiagnosis; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000401:mortality; D008297:Male; D008400:Mass Chest X-Ray; D008403:Mass Screening; D008875:Middle Aged; D013183:Sputum / Q000166:cytology*; D013997:Time Factors