Addendum

In the March 2007 issue of the Journal, in the article entitled “Gene-Expression Variation Within and Among Human Populations” by Storey et al. (80:502–509), information about where to obtain the microarray data was not provided. These data are available at the Gene Expression Omnibus Web site (http://www.ncbi.nlm.nih.gov/geo/ [accession number GSE7236]).