What percentage of lung cancer deaths are attributable to smoking?

Name: What percentage of lung cancer deaths are attributable to smoking?
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According to the American Cancer Society, smoking is the number one cause of lung cancer, accounting for about 85% of all cases of lung cancer deaths. Other factors that can contribute to lung cancer include exposure to radon gas, air pollution, and a family history of lung cancer.

What Percentage of Lung Cancer Deaths Are Attributable to Smoking