Submitted for Publication: November 7, 2012; final revision received December 16, 2012; accepted January 24, 2013.
Study concept and design: All authors.
Acquisition of data: Basheeth, Sheahan.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Sheahan.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Sheahan.
Administrative, technical, or material support: All authors.
Study supervision: All authors.
Conflict of Interest Disclosures: None reported.
Previous Presentation: This study was presented as a poster at the 2013 American Head and Neck Society meeting; April 10-11, 2013; Orlando, Florida.