Locus-specific plots of genotyped and imputed SNP results for top loci. Position on chromosome 7 (A), chromosome 18 (B), chromosome 20 (C), and chromosome 4 (D). Purple diamond indicates the most significant finding in the region. Colors on the marks represent LD (r²) with the top SNP. Chromosomal positions and linkage LD are based on hg19/1000 Genomes Mar 2012 AFR (http://csg.sph.umich.edu/locuszoom/).