kesehatanku.blogspot.com - Mesothelioma
May 08, 2007 · Harmful substances, called carcinogens, in tobacco damage the cells in the lungs. Over time, the damaged cells may become cancerous. The likelihood that a smoker will develop lung cancer is affected by the age at which smoking began, how long the person has smoked, the number of cigarettes smoked per day, and how deeply the smoker inhales.
DA: 28 PA: 67 MOZ Rank: 54