. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: J Invest Dermatol. 2013 Sep 5;134(3):658–665. doi: 10.1038/jid.2013.370
Users may view, print, copy, and download text and data-mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use:http://www.nature.com/authors/editorial_policies/license.html#terms