Accepted for Publication: January 30, 2013.
Published Online: June 5, 2013. doi:10.1001/jamadermatol.2013.321.
Study concept and design: Longo.
Acquisition of data: Longo, Zalaudek, Piana, Lallas, and Reggiani.
Analysis and interpretation of data: Longo, Pellacani, and Argenziano.
Drafting of the manuscript: Longo.
Critical revision of the manuscript for important intellectual content: Longo, Zalaudek, Piana, Pellacani, Lallas, and Argenziano.
Administrative, technical, or material support: Lallas and Argenziano.
Study supervision: Longo, Zalaudek, Piana, Reggiani, and Argenziano.
Conflict of Interest Disclosures: None reported.