Figure 1From: A genetic association study of DNA methylation levels in the DRD4 gene region finds associations with nearby SNPsPositional overview of DRD4 region investigated for SNP associations with DNA methylation. White boxes = exons; Black box = region assessed for DNA methylation. Diagram created using data from UCSC (http://genome.ucsc.edu/) and HapMap (http://hapmap.ncbi.nlm.nih.gov/).Back to article page