Figure 1From: Two-dimensional linkage analyses of rheumatoid arthritisSingle-locus contributions of chromosome 6 SNPs vs. other SNPs. Dark grey, single-locus LOD scores of the chromosome 6 SNP; light gray, single-locus LOD scores of the other SNP; unshaded, the interaction contribution. Numbers in parentheses on the X-axis indicate separate regions on a single chromosome.Back to article page