LD Plot of SNPs in TLR7. The blocks are defined by the black triangles using a solid spine of LD in Haploview. The color gradient refers to the degree of linkage disequilibrium, with red indicating strong LD (D' is high) and white indicating low LD (D' is low). Blue coloring indicates less confidence in the measurement. The actual LD is indicated in the box on a scale of 0-1.