Submitted for Publication: December 10, 2012; final revision received February 25, 2013; accepted April 11, 2013.
Acquisition of data: Rigual, Frustino, Cooper, Sullivan.
Analysis and interpretation of data: Rigual, Shafirstein, Seshadri, Wilding, Henderson.
Drafting of the manuscript: Rigual, Shafirstein, Frustino, Seshadri, Wilding, Sullivan, Henderson.
Critical revision of the manuscript for important intellectual content: Rigual, Shafirstein, Seshadri, Cooper, Henderson.
Statistical analysis: Seshadri, Wilding, Sullivan.
Obtained funding: Henderson.
Administrative, technical, and material support: Rigual, Shafirstein, Frustino, Seshadri, Cooper, Sullivan, Henderson.
Study supervision: Henderson.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was supported by grant PO1CA055791 from the National Institutes of Health (Drs Rigual and Henderson).
Previous Presentation: This study was presented at the American Head & Neck Society Eighth International Conference on Head and Neck Cancer; July 23, 2012; Toronto, Ontario, Canada.