Accepted for Publication: October 14, 2013.
Published Online: June 25, 2014. doi:10.1001/jamasurg.2014.621.
Study concept and design: Zonies, Martin, Carlton, Hanseman, Branson, Johannigman.
Acquisition, analysis, or interpretation of data: Ingalls, Zonies, Bailey, Iddins, Hanseman, Branson, Dorlac, Johannigman.
Drafting of the manuscript: Iddins, Carlton, Branson, Johannigman.
Critical revision of the manuscript for important intellectual content: Ingalls, Zonies, Bailey, Martin, Iddins, Hanseman, Branson, Dorlac, Johannigman.
Statistical analysis: Zonies, Hanseman.
Obtained funding: Johannigman.
Administrative, technical, or material support: Ingalls, Zonies, Bailey, Martin, Iddins, Branson, Dorlac.
Study supervision: Carlton, Branson, Johannigman.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by internal funding from the Department of Surgery, University of Cincinnati.
Role of the Sponsor: The funding source had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.