Accepted for Publication: March 9, 2012.
Published Online: May 21, 2012. doi:10.1001 /archsurg.2012.704
Author Contributions:Study concept and design: Menen, Kaushal, Hoffman, and Bouvet. Acquisition of data: Menen, Kaushal, and Snyder. Analysis and interpretation of data: Menen, Kaushal, Snyder, Talamini, Hoffman, and Bouvet. Drafting of the manuscript: Menen. Critical revision of the manuscript for important intellectual content: Menen, Snyder, Hoffman, and Bouvet. Statistical analysis: Menen. Administrative, technical, and material support: Bouvet. Study supervision: Talamini, Bouvet, and Hoffman.
Financial Disclosure: None reported.
Funding/Support: This study was supported in part by grants CA142669 and CA132971 to Dr Bouvet and AntiCancer Inc and a Society of University Surgeons training grant to Dr Menen.
Previous Presentation: This study was presented as a poster presentation at the 83rd Annual Meeting of the Pacific Coast Surgical Association; February 18, 2012; Napa Valley, California; and is published after peer review and revision.