Accepted for Publication: August 1, 2011.
Author Contributions: Dr Fleischmann had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Glantz, De Marco, Rosen, and Fleischmann. Acquisition of data: Weeks, De Marco, and Rosen. Analysis and interpretation of data: Weeks, Glantz, and Fleischmann. Drafting of the manuscript: Weeks, Glantz, and Fleischmann. Critical revision of the manuscript for important intellectual content: Weeks, Glantz, De Marco, Rosen, and Fleischmann. Statistical analysis: Glantz and Fleischmann. Obtained funding: Fleischmann. Administrative, technical, and material support: Weeks and De Marco. Study supervision: Weeks and Fleischmann.
Financial Disclosure: Dr De Marco has received grant funding from the Flight Attendant Medical Research Institute for a separate project. Dr Fleischmann has participated in continuing medical education and quality improvement initiatives sponsored by Pfizer.
Funding/Support: This work was funded through the Flight Attendant Medical Research Institute and Foundation for Cardiac Research at UCSF and supported by the National Institutes of Health–sponsored General Clinical Research Center at the University of California, San Francisco.
Role of the Sponsors: The sponsors had no role in the design and conduct of the study; in the collection, management, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
Additional Contributions: The General Clinical Research Center reviewed the protocol as part of its study approval process.