Du Du M M ,  Xin Xin J J ,  Zheng Zheng R R ,  Yuan Yuan Q Q ,  Wang Wang Z Z ,  Liu Liu H H ,  CYP2A6 Activity and Cigarette Consumption Interact in Smoking-Related Lung Cancer Susceptibility CYP2A6 Activity and Cigarette Consumption Interact in Smoking-Related Lung Cancer Susceptibility . This evidence concerns the gene CYP2A6 and lung carcinoma.