Correspondence: Timothy M. Pawlik, MD, MPH, PhD, Department of Surgery, The Johns Hopkins Hospital, 600 N Wolfe St, Blalock 288, Baltimore, MD 21287 (tpawlik1@jhmi.edu).
Accepted for Publication: October 5, 2011.
Author Contributions: Study concept and design: Kneuertz, Malla, Cosgrove, Kamel, Cameron, and Pawlik. Acquisition of data: Kneuertz, Malla, Kamel, Geschwind, and Pawlik. Analysis and interpretation of data: Malla, Herman, Kamel, and Geschwind. Drafting of the manuscript: Kneuertz, Malla, Herman, Kamel, Cameron, and Pawlik. Critical revision of the manuscript for important intellectual content: Kneuertz, Cosgrove, Herman, Kamel, Geschwind, and Pawlik. Statistical analysis: Malla, Kamel, and Geschwind. Obtained funding: Geschwind. Administrative, technical, and material support: Kneuertz and Pawlik. Study supervision: Kamel, Cameron, and Pawlik.
Financial Disclosure: None reported.