Early detection of lung cancer: a method for improving survival rates.
D004781:Environmental Exposure; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011379:Prognosis; D011859:Radiography; D012907:Smoking / Q000150:complications*; D013183:Sputum / Q000166:cytology