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sgmd gupta lung cancer screening_00000824.jpg
sgmd gupta lung cancer screening_00000824.jpg

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    Screening smokers may save lives

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Screening smokers may save lives

Lung cancer screening may save heavy smokers' lives. CNN's Dr. Sanjay Gupta reports.

Screening smokers may save lives

Lung cancer screening may save heavy smokers' lives. CNN's Dr. Sanjay Gupta reports.