Nat. Genet. 41, 228–233 (2009), published online 4 January 2009; corrected after print 28 April 2009
The affiliation of the 24th author, Alessandro Terrinoni, was listed incorrectly. It should read IDI-IRCCS Biochemistry Laboratory c/o Univ. Tor Vergata, 00133 Rome, Italy. The error has been corrected in the HTML and PDF versions of this article.
The online version of the original article can be found at 10.1038/ng.276