Wang Wang L L ,  Zang Zang W W ,  Liu Liu J J ,  Xie Xie D D ,  Ji Ji W W ,  Pan Pan Y Y ,  Association of CYP2A6*4 with susceptibility of lung cancer: a meta-analysis Association of CYP2A6*4 with susceptibility of lung cancer: a meta-analysis . This evidence concerns the gene CYP2A6 and lung cancer.