ERCC2 and esophageal squamous cell carcinoma: In addition to the present association study, we identified 18 other published case-control studies on ERCC2 rs13181 SNP6, 7, 8, 14, 15, 16, 17, with the sample sizes ranging between 151 and 1600, for which we performed a mini meta-analysis to assess the association of this SNP with ESCC risk (Supplemental Table 2).