Published Online: December 17, 2014. doi:10.1001/jamasurg.2014.1098.
Study concept and design: Eppstein, Sakamoto, Gwirtz.
Acquisition, analysis, or interpretation of data: Munshi.
Drafting of the manuscript: Eppstein.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Eppstein.
Administrative, technical, or material support: All authors.
Study supervision: Eppstein, Munshi.
Conflict of Interest Disclosures: None reported.
Previous Presentation: This paper was presented at the 38th Annual Surgical Symposium of the Association of VA Surgeons; April 8, 2014; New Haven, Connecticut.