Accepted for Publication: January 21, 2014.
Published Online: March 26, 2014. doi:10.1001/jamadermatol.2014.184.
Study concept and design: All authors.
Acquisition of data: All authors.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Obtained funding: Collins.
Administrative, technical, and material support: Collins.
Study supervision: Collins.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported in part by the Division of Intramural Research, National Institutes of Dental and Craniofacial Research, and the Center for Cancer Research, National Cancer Institute, National Institutes of Health.
Role of the Sponsor: The funders had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.