Lung carcinoma: detection of risk-collectives and early symptoms.
D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011379:Prognosis; D011859:Radiography; D011795:Surveys and Questionnaires; D013997:Time Factors