Methods:The single nucleotide polymorphisms (SNP) in XRCC2 C41657T and G4234C were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis in 199 patients with lung cancer, and 200 healthy controls.

• 方法应用PCR-RFLP方法检测199例肺癌患者和200例正常人的XRCC2C41657T及G4234C多态位点,比较两组之间等位基因及基因型频率分布及其与肺癌的关系。