Objective To investigate the relationship between the genetic polymorphism of CYP1A1 and the genetic susceptibility to lung cancer as well as to study the effects of the methylation in p16 gene on the risk of lung cancer.

• 目的探讨CYP1A1基因多态性与肺癌易感性的关系及p16基因甲基化对肺癌发病的影响。