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It is true that when you stop smoking cigarettes you still carry an increased risk of developing lung cancer. People who stop smoking before age 50 cut their risk of dying in the next 15 years in half compared with those who continue to smoke. Ten years after quitting smoking, the lung cancer death rate is about half of a continuing smoker's.
Medically reviewed by John A. Daller, MD; American Board of Surgery with subspecialty certification in surgical critical care
"Overview of the risk factors, pathology, and clinical manifestations of lung cancer"
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