Each year, more people die of lung cancer than of colon, breast and prostate cancers combined. Cigarette smoking is the number one risk factor for lung cancer, and nearly 87 percent of all lung cancers in the United States are smoking-related. Today, we are joined by Dr. John Howington to learn more.
<p>Each year, more people die of lung cancer than of colon, breast and prostate cancers combined.&nbsp; Cigarette smoking is the number one risk factor for lung cancer, and nearly 87 percent of all lung cancers in the United States are smoking-related.&nbsp; Today, we are joined by Dr. John Howington to learn more.&nbsp;&nbsp;</p>
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