10–15% of lung cancer patients have never smoked. That means between 20,000 to 30,000 never-smokers are diagnosed with lung cancer in the United States each year. Because of the five-year survival rate, each year in the U.S. more never-smokers die of lung cancer than do patients of leukemia, ovarian cancer, or AIDS.
10–15% of lung cancer patients have never smoked.
回答: Passive smoking—the inhalation of smoke from another's smoking—i
由 JoshuaChow
于 2010-10-26 08:40:10