Published Online: July 27, 2015. doi:10.1001/jamainternmed.2015.3552.
Study concept and design: Tice, Yates, Weitzman, Belknap.
Acquisition, analysis, or interpretation of data: Bhattacharya, Tice, Lingam, Florek, Yates, Belknap.
Drafting of the manuscript: Bhattacharya, Tice, Florek, Belknap.
Critical revision of the manuscript for important intellectual content: Bhattacharya, Lingam, Yates, Weitzman, Belknap.
Statistical analysis: Bhattacharya, Tice, Lingam, Belknap.
Administrative, technical, or material support: Tice, Yates.
Study supervision: Tice.
Conflict of Interest Disclosures: None reported.
Additional Contributions: Dennis P. West, PhD, Department of Dermatology, Northwestern University Feinberg School of Medicine, contributed to the design, conduct, and supervision of this study and analysis of the data, and assisted in writing and editing the manuscript. Paul Yarnold, PhD, Optimal Data Analysis LLC, contributed to the statistical analysis of the data and reviewed the manuscript. Beatrice Nardone, MD, PhD, Department of Dermatology, Northwestern University Feinberg School of Medicine, contributed to the design and conduct of this study and analysis of the data, and reviewed the manuscript. None of the contributors were compensated for their contributions.