(The American Journal of Human Genetics 86, 832–838; June 11, 2010)
As a result of a coding error affecting permutation randomization, Tables 1–3 and Tables S1–S4 in the version of this article published online on May 12 contained slight inaccuracies, which have been corrected in the current version both online and in print. In addition, the text “p value increases from 0.002 to 0.008” on the bottom of p. 5 has been changed to “p value increases from 0.002 to 0.009.” The authors regret this error, and are grateful to Adam Kiezun for correcting it.