ERCC2 and cervical squamous intraepithelial neoplasia: Studies have shown an increased risk of CIN in Caucasian osteosarcoma and gastric cancer patients with ERCC2 rs13181 and rs1799793, respectively [27, 47], while in East-Asian lung cancer patients, Kim et al. did not find any association between CIN and ERCC2 rs13181 [48].