Accepted for Publication: August 22, 2013.
Published Online: April 2, 2014. doi:10.1001/jamadermatol.2013.7733.
Study concept and design: Terras, Gambichler, Moritz, Kreuter.
Acquisition of data: Terras, Stücker, Kreuter.
Analysis and interpretation of data: Terras, Gambichler, Stücker, Kreuter.
Drafting of the manuscript: Terras, Kreuter.
Critical revision of the manuscript for important intellectual content: Terras, Gambichler, Moritz, Stücker, Kreuter.
Statistical analysis: Gambichler.
Administrative, technical, and material support: Terras, Moritz, Stücker.
Study supervision: Gambichler, Kreuter.
Conflict of Interest Disclosures: None reported.
Funding/Support: FoRUM (Forschungsförderung Ruhr University Bochum Medizinische Fakultat, project F615-2008) funded this work.
Role of the Sponsor: The sponsor 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.
Additional Contributions: Kim Allrich and Marina Skrygan, PhD, Department of Dermatology, Ruhr-University Bochum, provided technical assistance. They did not receive compensation for their contributions.