Accepted: April 2, 2103.
Published Online: July 31, 2013. doi:10.1001/jamasurg.2013.3044.
Acquisition of data: Leung, Morton, Shin-Sim, Faries.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Leung, Morton, Ozao-Choy.
Critical revision of the manuscript for important intellectual content: Leung, Morton, Hari, Shin-Sim, Difronzo, Faries.
Statistical analysis: Leung, Ozao-Choy, Shin-Sim.
Obtained funding: Leung, Morton.
Administrative, technical, and material support: Leung, Morton, Hari, Faries.
Study supervision: Morton, Difronzo, Faries.
Conflict of Interest Disclosures: None reported.
Funding/Support: Supported in part by fellowship funding from the Harold McAlister Charitable Foundation (Los Angeles, CA) (Dr Leung). Also supported by grant P01 CA29605 from the National Cancer Institute.
Disclaimer: The content of this article is solely the responsibility of the authors and does not necessarily represent the official view of the National Cancer Institute or the National Institutes of Health.
Previous Presentations: This study was presented in part at the 85th Annual Conference of the Pacific Coast Surgical Association; Kauai, Hawaii; February 19, 2013, and is published after peer review and revision.