Nature Reviews Genetics 12, 730–736 (2011)

In the above article, the incorrect link was provided for GWAS Central. The correct link should have been http://www.gwascentral.org. In the Further Information Box, the link to http://gwas.nih.gov was incorrectly described as 'GWAS Central (includes policy)'. This link should have been described as 'NIH GWAS policy'. The corrected article is available at: http://www.nature.com/nrg/journal/v12/n10/abs/nrg3067.html. The editors apologize for this error.