10–15% of lung cancer patients have never smoked.

来源: 于 2010-10-26 08:42:37 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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.