title: High risk candidates for lung cancer should be screened early.
mesh_terms: D000367:Age Factors; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D012306:Risk; D012907:Smoking / Q000009:adverse effects*