Accepted for Publication: July 23, 2012.
Published Online: November 12, 2012. doi:10.1001/2013.jamainternmed.438
Author Contributions: All authors had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Drs Zhou and Maviglia contributed equally to this work. Study concept and design: Zhou, Maviglia, Mahoney, Chang, Bates, and Rocha. Acquisition of data: Zhou, Chang, Boulware, and Lou. Analysis and interpretation of data: Zhou, Maviglia, Chang, Orav, Plasek, Boulware, and Bates. Drafting of the manuscript: Zhou, Maviglia, and Chang. Critical revision of the manuscript for important intellectual content: Zhou, Maviglia, Mahoney, Orav, Plasek, Boulware, Lou, Bates, and Rocha. Statistical analysis: Zhou, Maviglia, Chang, Orav, and Boulware. Obtained funding: Zhou. Administrative, technical, and material support: Zhou, Maviglia, Mahoney, Chang, Plasek, Boulware, Lou, Bates, and Rocha. Study supervision: Zhou, Maviglia, and Rocha.
Conflict of Interest Disclosures: None reported.
Funding/Support: This project was funded by the Partners-Siemens Research Council.
Role of the Sponsors: The Partners-Siemens Research Council played no role in design or conduct of the study; in collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript.