Schematic diagrams of the MMP-2 (A) and MMP-9 (B) genes showing the location of the 13 exons (black boxes), the 5' and 3' untranslated regions (white boxes) and the pairwise r
2 plots for the 21 genotyped SNPs in MMP-2 and 4 genotyped SNPs in MMP-9 , in our population sample. Markers associated with three months outcome are indicated. Linkage disequilibrium blocks were generated using the Gabriel et al.  method.