Accepted for Publication: February 4, 2013.
Published Online: August 7, 2013. doi:10.1001/jamasurg.2013.2757.
Acquisition of data: Rodriguez, Anglin, Langdorf, Baumann, Hendey, Medak, Raja, Jhun, Fortman, Mulkerin, Mower.
Analysis and interpretation of data: Rodriguez, Hendey, Raja, Mower.
Drafting of the manuscript: Rodriguez, Langdorf, Baumann, Hendey, Raja, Mower.
Critical revision of the manuscript for important intellectual content: Rodriguez, Langdorf, Baumann, Hendey, Raja, Mower.
Statistical analysis: Rodriguez, Raja.
Obtained funding: Rodriguez, Hendey, Mower.
Administrative, technical, and material support: Jhun, Fortman, Mulkerin.
Study supervision: Rodriguez, Hendey, Mower.
Funding/Support: This study was funded by grant RO-1 1 RO1/CE001589-01 from the Centers for Disease Control and Prevention (Dr Rodriguez).
Role of the Sponsor: The Centers for Disease Control and Prevention had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Correction: This article was corrected online October 28, 2013, for an error in an author affiliation.