Submitted for Publication: March 19, 2011; final revision received May 26, 2011; accepted September 18, 2011.
Author Contributions: All authors had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Darr, Patel, Tiwari, and Geliebter. Acquisition of data: Patel, Komorowski, McCormick, Schantz, and Geliebter. Analysis and interpretation of data: Patel, Yu, Schantz, and Geliebter. Drafting of the manuscript: Darr, Patel, Yu, Schantz, and Geliebter. Critical revision of the manuscript for important intellectual content: Patel, Komorowski, McCormick, Tiwari, and Geliebter. Statistical analysis: Yu, Schantz, and Geliebter. Obtained funding: Tiwari. Administrative, technical, and material support: Darr, Patel, Komorowski, McCormick, and Geliebter. Study supervision: McCormick, Schantz, and Geliebter.
Financial Disclosure: None reported.
Funding/Support: This study was supported in part by grant 1R01 CA131946-01A2 from the National Cancer Institute (Dr Tiwari).
Previous Presentation: This study was presented at the American Head and Neck Society 2011 Annual Meeting; April 27, 2011; Chicago, Illinois.
Additional Contributions: Fred Moy, PhD, New York Medical College, provided guidance in statistical analysis.