Submitted for Publication: February 23, 2012; final revision received April 4; accepted April 21, 2012.
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: Steiner. Acquisition of data: Canis, Plüquett, Matthias, and Steiner. Analysis and interpretation of data: Canis, Plüquett, Ihler, Matthias, Kron, and Steiner. Drafting of the manuscript: Canis, Ihler, and Matthias. Critical revision of the manuscript for important intellectual content: Canis, Plüquett, Ihler, Matthias, Kron, and Steiner. Statistical analysis: Canis, Plüquett, Ihler, and Kron. Obtained funding: Plüquett. Administrative, technical, and material support: Canis, Ihler, and Matthias. Study supervision: Canis, Matthias, and Steiner.
Financial Disclosure: None reported.
Previous Presentation: The results from this study were presented at the Combined Otolaryngology Spring Meetings; April 28-29, 2010; Las Vegas, Nevada.