MMP13 and non-small cell lung carcinoma: The frequencies of CC, CT, and TT genotypes of the MMP9 were 82.04%, 17.96%, 0 and 67.05% in non-small cell lung cancer cases, and 67.05%, 32.95%, 0 in the control group, and the frequencies of GG, AG, and AA genotypes of the MMP13 were17.55%, 38.37%, 44.08% and 12.02% in patients, and 12.02%, and 33.72% and 54.26% in controls.