Submitted for Publication: July 26, 2011; accepted August 2, 2011.
Author Contributions: Dr Weber had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Financial Disclosure: None reported.
Previous Presentation: This article was presented as the Hayes Martin Lecture at the American Head and Neck Society 2011 Annual Meeting; April 28, 2011; Chicago, Illinois.
Additional Contributions: Mariann Crapanzano, JD, and Carol M. Lewis, MD, MPH, provided critical review, editing, and input into the manuscript.