The Mayo Lung Project: preliminary report of "early cancer detection" phase.
D002283:Carcinoma, Bronchogenic / Q000175:diagnosis / Q000453:epidemiology*; D003581:Cytodiagnosis; D008175:Lung Neoplasms / Q000175:diagnosis / Q000453:epidemiology*; D008403:Mass Screening; D008487:Medical History Taking; D011159:Population Surveillance; D012907:Smoking; D013183:Sputum / Q000166:cytology; D014481:United States