Lung cancer kills more men and women in the United States than any other type of cancer. Across the globe, lung cancer accounts for more fatalities than colon, breast and pancreatic cancers combined, claiming 1.37 million lives every year, according to the World Health Organization.
Some estimates suggest that as much as 90 percent of lung cancer cases can be attributed to smoking. Quitting smoking can greatly reduce a personÕs risk of lung cancer, but smoking is not the only cause of the disease. Lung cancer also can strike nonsmokers.
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