Fig. 2From: From blood to lung tissue: effect of cigarette smoke on DNA methylation and lung functionManhattan plot of the EWAS on pack years in current smokers. Every dot represents an individual CpG-site. Location on the X-axis indicates the chromosomal position and location on the Y-axis indicates the inversed log [10] p-value. Horizontal line indicates genome wide significance (p < 1.19 × 10^− 7)Back to article page