Accepted for Publication: February 2, 2011.
Published Online: April 11, 2011. doi:10.1001/archdermatol.2011.67
Author Contributions: All authors had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Edelstein and Margolis. Acquisition of data: Fanelli, Edelstein, and Margolis. Analysis and interpretation of data: Fanelli, Kupperman, Lautenbach, and Margolis. Drafting of the manuscript: Fanelli, Kupperman, Edelstein, and Margolis. Critical revision of the manuscript for important intellectual content: Fanelli, Kupperman, Lautenbach, Edelstein, and Margolis. Statistical analysis: Fanelli, Kupperman, Lautenbach, and Margolis. Obtained funding: Margolis. Administrative, technical, and material support: Edelstein and Margolis. Study supervision: Edelstein and Margolis.
Financial Disclosure: None reported.
Funding/Support: This study was supported in part by grant R01AR051185 from the National Institutes of Health.
Additional Contributions: Martha A. C. Edelstein and Andrew Baltus provided excellent technical assistance.