Accepted for Publication: September 29, 2014.
Published Online: April 1, 2015. doi:10.1001/jamasurg.2015.0219.
Study concept and design: Spolverato, Kim, Pawlik.
Acquisition, analysis, or interpretation of data: Spolverato, Kim, Ejaz, Alexandrescu, Marques, Aldrighetti, Gamblin, Pulitano, Bauer, Shen, Sandroussi, Poultsides, Maithel.
Drafting of the manuscript: Spolverato, Kim.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Kim, Ejaz, Shen.
Administrative, technical, or material support: Spolverato, Gamblin, Pulitano, Bauer, Sandroussi, Poultsides, Pawlik.
Study supervision: Spolverato, Marques, Aldrighetti, Sandroussi, Pawlik.
Conflict of Interest Disclosures: None reported.
Additional Contributions: We acknowledge Gilles Mentha, MD (Hôpitaux Universitaires de Genève, Geneva, Switzerland), for important and significant contributions to the study concept and design and data acquisition. He did not receive compensation for his contributions.