Submitted for Publication: April 1, 2013; final revision received July 3, 2013; accepted August 5, 2013.
Published Online: October 17, 2013. doi:10.1001/jamaoto.2013.5217.
Study concept and design: All authors.
Acquisition of data: Olsen, Moore.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Olsen, Moore.
Critical revision of the manuscript for important intellectual content: All authors.
Administrative, technical, and material support: Olsen, Lewis.
Study supervision: Olsen.
Conflict of Interest Disclosures: None reported.
Previous Presentation: Presented at the Eighth International Conference on Head and Neck Cancer; July 23, 2012; Toronto, Ontario, Canada.