COL6A3 and lung cancer: Further, the correlations of survival rates with the expression of COL6A3 in lung cancer illustrated that lung cancer patients with higher COL6A3 expression had a lower survival rates (HR =1.32, 95%CI: 1.11–1.58, log-rank p = 0.0018, Additional file 3: Figure S3) shown in the database of Kaplan-Meier Plotter (http://kmplot.com/analysis/index.php?p=service&cancer=gastric).