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  1. RESULTS - Screening for Lung Cancer: Systematic Review to Update the U.S. Preventive Services Task Force Recommendation ... 
    https://www.ncbi.nlm.nih.gov/books/NBK154614
    ... through February 2006. Male current or former smokers (≥20 pack-years) ages 60 to 74 years were eligible. ... 70 years who were current or former smokers (≥20 pack-years smoking history). Former smokers must have quit ...
  2. Results - Screening for Chronic Obstructive Pulmonary Disease - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK361189
    ... 1 /FVC <70%) and a smoking history of 20 pack-years or more. Although inclusion criteria would exclude ... years, with one subanalysis requiring a minimum of 20 pack-years. 125 All primary trials excluded patients with ...
  3. Health screenings for men ages 40 to 64 
    https://medlineplus.gov/ency/article/007465.htm
    ... the past 15 years and also have a 20 pack-year smoking history should have this test annually. ... 50 to 80 years AND You have a 20 pack-year smoking history AND You currently smoke or ...
  4. NLM Digital Collections - The Health Consequences of Smoking: A Reference Edition 
    Publication: National Clearinghouse for Smoking and Health, 1976
    resource.nlm.nih.gov/101584932X563
    ... voc eevee AAS 1062, industry <1 packs <i packs 20 3.1132) 60.0 (4) Ferris 542 male ... 822 grenter than 1 (180), of respira. 5496 pack year, tory ‘ D, values have disease \ 20-63 years been corrected of age. for COVb. ...
  5. Non-small cell lung cancer 
    https://medlineplus.gov/ency/article/007194.htm
    ... age 50 to 80 years and have a 20 pack-year smoking history and currently smoke or have quit within the past 15 years, ask your provider about being screened for lung cancer by low-dose CT scan of your chest.
  6. Results - Renal Artery Stenosis Management Strategies - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK379971
    ... percent of patients who had surgical revascularization had >20 pack-years of smoking history, in contrast with 9 ...
  7. Solitary pulmonary nodule 
    https://medlineplus.gov/ency/article/000071.htm
    ... age 50 to 80 years who have a 20 pack-year smoking history. Your health care provider must ...
  8. Lung cancer 
    https://medlineplus.gov/ency/article/007270.htm
    ... age 50 to 80 years and have a 20 pack-year smoking history and currently smoke or have ...
  9. Health screenings for men age 65 and older 
    https://medlineplus.gov/ency/article/007466.htm
    ... 50 to 80 years AND You have a 20 pack-year smoking history AND You currently smoke or ...
  10. Health screenings for women age 65 and older 
    https://medlineplus.gov/ency/article/007463.htm
    ... 50 to 80 years AND You have a 20 pack-year smoking history AND You currently smoke or ...
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