“…Asp312Asn and Lys751Gln polymorphisms are the two most widely investigated ERCC2 polymorphisms associated with increased DNA adduct levels and with low DNA repair capacity (Lunn et al, 2000), which suggests that these two SNPs may contribute to carcinogenesis and can be regarded as risk factors for cancer development. Recently, many systematic reviews and meta-analyses have been performed to examine the association of ERCC2 polymorphisms with various cancers (Duan et al, 2012;Yin et al, 2013;Huang et al, 2014;Liu et al, 2014;Xin et al, 2014;Yan et al, 2014;Zhu et al, 2014) except for NHL. What's more, epidemiological studies investigating the association of ERCC2 polymorphisms with NHL risk in populations of different ethnic origin have been published, but the results remain inconclusive (Shen et al, 2006;Smedby et al, 2006;Shen et al, 2007;Song et al, 2008;Baris et al, 2009;Worrillow et al, 2009;Yang et al, 2009;El-Din et al, 2013;Fabisiewicz et al, 2013;Kim et al, 2014).…”