Accepted for Publication: April 23, 2013.
Published Online: September 30, 2013. doi:10.1001/jamadermatol.2013.5098.
Study concept and design: Idorn, Wulf.
Acquisition of data: Idorn, Datta, Heydenreich, Philipsen.
Analysis and interpretation of data: Idorn, Philipsen, Wulf.
Drafting of the manuscript: Idorn.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Idorn, Philipsen.
Obtained funding: Idorn, Wulf.
Administrative, technical, and material support: Heydenreich, Philipsen, Wulf.
Study supervision: Wulf.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported in part by the Bispebjerg Hospital Research Fund; Aage Bangs Fond; Toyota-Fonden, Denmark; Danish Society of Dermatology; Direktør Jacob Madsen og Hustru Olga Madsens Fond; Hartmann Fonden; The Danish Medical Association Research Fund; Søren og Helene Hempels Legat; Familien Hede Nielsens Fond; Steenbecks Legat; and Else og Mogens Wedell-Wedellsborgs Fond.
Role of theSponsors: The sponsors had no role in the design and conduct of the study; in the collection, analysis, and interpretation of data; or in the preparation, review, or approval of the manuscript.
Additional Contributions: We are indebted to the volunteers for their interest and participation in the study.