Figure 5 .
Biomarkers obtained in COPD patients evaluated in 2012 as negative LC (−LC) and positive LC (+LC). Figure shows as a percentage H-S-Freq (High Smoke Frequency), H-GOLD (High GOLD: GOLD > 2) and methylation on p16, CDH1 and MGMT. * P < 0.05 respect to -LC group.
Guzmán et al. Diagnostic Pathology 2012 7:87 doi:10.1186/1746-1596-7-87