Fig. 4
From: Sulfatase modifying factor 1 (SUMF1) is associated with Chronic Obstructive Pulmonary Disease
eQTL analysis of SUMF1 SNPs. Each set of box plots represents the three different cohorts, combined (ALL) as well as separately (GRN = Groningen, Laval = Laval University and UBC = University of British Columbia), and the corrected expression differences seen between the different SNP genotypes. a represents the SNP rs11915920 and b represents the SNP rs793391. Genotype is presented with the reference/reference genotype to the left