Accepted for Publication: June 27, 2014.
Published Online: October 1, 2014. doi:10.1001/jamadermatol.2014.2082.
Conflict of Interest Disclosures: Drs Schmidt and Zillikens have a scientific cooperation relationship with Miltenyi Biotec and Fresenius Medical Care. Drs Kasperkiewicz, Schmidt, and Zillikens received honoraria from these companies. Dr Süfke has received research support from the Else Kröner-Fresenius Foundation. No other disclosures are reported.
Funding/Support: This study was supported in part by research grants from the Else Kröner-Fresenius Foundation (P52/09/A17/09), the Deutsche Forschungsgemeinschaft (EXC 306/1), and the Medical Faculty of the University of Lübeck.
Role of the Sponsor: The funding organizations had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.