Lung Cancer - Are You At Risk?

[ahlam1399]

Lung cancer is cancer than begins in one or both of the lungs. It is the leading cause of cancer death in men and women in the united states. Lung cancer is mostly the disease of the elderly because it develops over a period of time. Smokers are at the greatest risk of getting lung cancer.

أكثر... (http://EzineArticles.com/7178611)