Accepted for Publication: June 9, 2012.
Published Online: September 17, 2012. doi:10.1001/2013.jamasurg.4
Author Contributions:Study concept and design: Riha, Kiraly, Flaherty, and Schreiber. Acquisition of data: Kiraly, Cho, Flaherty, Kuehn, Underwood, and Schreiber. Analysis and interpretation of data: Riha, Kiraly, Diggs, Cho, Fabricant, Flaherty, and Kuehn. Drafting of the manuscript: Riha. Critical revision of the manuscript for important intellectual content: Riha, Kiraly, Diggs, Cho, Fabricant, Flaherty, Kuehn, Underwood, and Schreiber. Statistical analysis: Riha, Diggs, Cho, and Fabricant. Obtained funding: Underwood. Administrative, technical, and material support: Riha and Flaherty. Study supervision: Kiraly, Flaherty, Kuehn, and Schreiber.
Financial Disclosure: None reported.
Previous Presentation: This paper was presented 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.