Submitted for Publication: February 19, 2013; final revision received June 5, 2013; accepted July 19, 2013.
Published Online: October 3, 2013. doi:10.1001/jamaoto.2013.4973.
Study concept and design: Nixon, Palmer, Ganly.
Acquisition of data: Nixon, Palmer, Ganly.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Nixon, Lakin, Kattan, Lee, Ganly.
Critical revision of the manuscript for important intellectual content: Palmer, Kattan, Ganly.
Statistical analysis: Nixon, Palmer, Lakin.
Administrative, technical, and material support: Palmer.
Study supervision: Ganly.
Conflict of Interest Disclosures: None reported.
Previous Presentation: This study was presented at the American Head and Neck Society 2013 Annual Meeting; April 11, 2013; Orlando, Florida.