Nature Communications 4: Article number: 2218 10.1038/ncomms3218 (2013); Published: July262013; Updated: October102013.
The original version of this Article contained a typographical error in the spelling of the author Jessica Zucman-Rossi, which was incorrectly given as Jessica Zucman Rossi. This has now been corrected in both the PDF and HTML versions of the Article.
