title: Screening for lung cancer: are you a candidate for this test?  For those who qualify, a low-dose CT scan to look for small tumors may be free of charge.  Here's how it works.
mesh_terms: D000368:Aged; D055088:Early Detection of Cancer / Q000379:methods*; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000517:prevention & control*; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D017410:Practice Guidelines as Topic; D011829:Radiation Dosage; D012307:Risk Factors; D012907:Smoking / Q000453:epidemiology; D014057:Tomography, X-Ray Computed / Q000191:economics* / Q000706:statistics & numerical data*; D014481:United States