Accepted for Publication: September 14, 2012.
Published Online: April 10, 2013. doi:10.1001/jamasurg.2013.57
Author Contributions:Study concept and design: Madorin, Owen, Coakley, Weber, and Inabnet. Acquisition of data: Madorin, Owen, Coakley, Lowe, Nam, Rios, Pawha, and Inabnet. Analysis and interpretation of data: Madorin, Owen, Coakley, Lowe, Kushnir, Rios, Genden, and Pawha. Drafting of the manuscript: Madorin, Kushnir, and Inabnet. Critical revision of the manuscript for important intellectual content: Madorin, Owen, Coakley, Lowe, Nam, Weber, Rios, Genden, Pawha, and Inabnet. Statistical analysis: Madorin and Lowe. Administrative, technical, and material support: Owen, Coakley, Nam, Pawha, and Inabnet. Study supervision: Owen, Weber, Genden, Pawha, and Inabnet.
Conflict of Interest Disclosures: None reported.