Characteristics of studies that explored the association between <i>ERCC1</i> polymorphisms and lung cancer risk.

AC, adenocarcinoma; HB, Hospital based; NSCLC, non small cell lung cancer; PB, Population based; PCR-RFLP, Polymerase chain reaction-restriction fragment length polymorphism; LDR-PCR, ligase detection reaction coupled with PCR; MAF, Minor allele frequency; HWE, Hardy-Weinberg equilibrium. *mixed: small cell lung cancer, non-small cell lung cancer (adenocarcinoma, squamous carcinoma, large-cell carcinoma, etc.)