Nature Reviews Genetics 5, 89–100 (2004); doi:10.1038/nrg1270

In Figure 1, the axes of the two top panels were incorrectly labelled. The corrected version is shown below.

Figure 1
figure 1

Reduction in effect size owing to linkage disequilibrium and mismatches between marker and disease allele frequencies.

This correction has been made to the online enhanced text and PDF version of this review.