Lung cancer in young patients in Turkey.
D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012907:Smoking / Q000009:adverse effects; D014421:Turkey