In a study focused on lung cancer of Taiwanese patients, it was suggested that the genotypes of MMP11 might play a minor role in determining lung cancer risk since no significant association was found between the MMP11 rs738791, rs2267029, rs738792 or rs28382575 and lung cancer risk, and no joint effect of MMP11 genotypes was found among ever smokers or non-smokers [41]. Here, MMP11 is linked to lung cancer.