“…The initial search identified 46 studies for ERCC2 rs13181, of which 11 met the selection criteria (Caggana et al, 2001;Wrensch et al, 2005;Yang et al, 2005;Liu et al, 2009;McKean-Cowdin et al, 2009;Rajaraman et al, 2010;Chen et al, 2012;Luo et al, 2013;Salnikova et al, 2013;Zhang, 2013;Rodriguez-Hernandez et al, 2014). Among the excluded studies, four were dissertations, three were reviews, 21 did not investigate the ERCC2 rs13181 polymorphism, eight did not report the association between the ERCC2 rs13181 polymorphism and risk of glioma, and two were replication studies.…”