Single-, two-, and three-SNP haplotype association with Clusters 3, 4, 5. The y-axis shows 1-p-value with reference lines for α = 0.05 and α = 0.01. Circles represent the two-SNP analyses, triangles the three-SNP. Cluster 3 results are in black type, Cluster 4 in blue, and Cluster 5 in red. The shaded areas on either side of the region show strong linkage disequilibrium (greater than 0.86).