Accepted for Publication: March 11, 2011.
Published Online: September 19, 2011. doi:10.1001/archsurg.2011.235
Author Contributions: Dr Martin 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. Study concept and design: Porta and Martin. Acquisition of data: Porta and Martin. Analysis and interpretation of data: Sebesta, Brown, Steele, and Martin. Drafting of the manuscript: Porta and Martin. Critical revision of the manuscript for important intellectual content: Sebesta, Brown, and Steele. Statistical analysis: Porta, Steele, and Martin. Administrative, technical, and material support: Sebesta and Brown. Study supervision: Brown and Martin.
Financial Disclosure: None reported.
Role of the Sponsor: This article represents the opinions of the authors only and does not represent the views of the US Department of Defense, the Department of the Army, or Madigan Army Health System.
Previous Presentation: This paper was presented at the 82nd Annual Meeting of the Pacific Coast Surgical Association; February 19, 2011; Scottsdale, Arizona, and is published after peer review and revision.