Accepted for Publication: November 14, 2014.
Published Online: May 6, 2015. doi:10.1001/jamasurg.2015.81.
Study concept and design: Ejaz, Frank, Spolverato, Pawlik.
Acquisition, analysis, or interpretation of data: Ejaz, Frank, Spolverato, Kim.
Drafting of the manuscript: Ejaz, Frank, Spolverato, Kim.
Critical revision of the manuscript for important intellectual content: Ejaz, Frank, Spolverato, Pawlik.
Statistical analysis: Ejaz, Kim.
Administrative, technical, or material support: Frank, Spolverato.
Study supervision: Frank, Pawlik.
Conflict of Interest Disclosures: None reported.
Disclaimer: Dr Pawlik is a JAMA Surgery Deputy Editor but was not involved in the review process or the acceptance of the manuscript.