The time a person smokes (as well as rate of smoking) increases

回答: Women who smokeJoshuaChow2010-10-26 08:36:10

The time a person smokes (as well as rate of smoking) increases the person's chance of developing lung cancer. If a person stops smoking, this chance steadily decreases as damage to the lungs is repaired and contaminant particles are gradually removed. In addition, there is evidence that lung cancer in never-smokers has a better prognosis than in smokers, and that patients who smoke at the time of diagnosis have shorter survival times than those who have quit.

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Passive smoking—the inhalation of smoke from another's smoking—i -JoshuaChow- 给 JoshuaChow 发送悄悄话 JoshuaChow 的博客首页 (462 bytes) () 10/26/2010 postreply 08:40:10

10–15% of lung cancer patients have never smoked. -JoshuaChow- 给 JoshuaChow 发送悄悄话 JoshuaChow 的博客首页 (330 bytes) () 10/26/2010 postreply 08:42:37

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