MMP2 and non-small cell lung carcinoma: The heatmap showing the expression of 7 autophagy-associated lncRNAs in NSCLC samples exhibited that NKILA, LINC00941, ABALON, and AL161431.1 were high in the high-risk group, whereas AC020765.2, MMP2-AS1, and AL691432.2 were low in the low-risk group.