Accepted for Publication: November 29, 2012.
Author Contributions: Drs Pazhenkottil, Muehleisen, and Hofbauer had full access to all of 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: Muehleisen and Hofbauer. Acquisition of data: Muehleisen and Pazhenkottil. Analysis and interpretation of data: Muehleisen, Pazhenkottil, French, and Hofbauer. Drafting of the manuscript: Muehleisen and Hofbauer. Critical revision of the manuscript for important intellectual content: Pazhenkottil, French, and Hofbauer. Statistical analysis: Muehleisen. Obtained funding: Hofbauer. Administrative, technical, and material support: Muehleisen, Pazhenkottil, Hofbauer. Study supervision: Pazhenkottil, French, Hofbauer.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported in part by Baugarten Stiftung.
Additional Contributions: Tamara Gachter, MD, assisted in extracting histological data.