Many people think that only elderly people who smoke can get lung cancer, but the latest statistics in a certain country show that in recent years, the number of female deaths caused by lung cancer in this country is more than that of breast cancer, endometrial cancer and ovarian cancer combined. And the vast majority of women don't realize this at all.
Based on the above content, which of the following cannot be released?
Tobacco is not the only cause of lung cancer, and many factors are also involved in the pathogenesis of lung cancer