Regional plots of association results, recombination hotspots and linkage disequilibrium for the (a) 6p21.31:34,046,381–34,243,213 and (b) 2p25.2:6,280,533–6,473,384 osteosarcoma susceptibility loci. Association results from a trend test in –log10P values (y axis, left; gray diamonds, combined GWAS result; sky blue diamonds, TaqMan result; red diamonds, combined result) of the SNPs are shown according to their chromosomal positions (x axis). Linkage disequilibrium structure based on controls (n=2,703) was visualized by snp.plotter software. The line graph shows likelihood ratio statistics (y axis, right) for recombination hotspot by SequenceLDhot software and 5 different colors represent 5 tests of 100 controls without resampling. Physical locations are based on NCBI human genome build 36. Gene annotation was based on the NCBI RefSeq genes from the UCSC Genome Browser.