Published Online: November 15, 2010. doi:10.1001/jama.2010.1664
Author Contributions: Dr Einstein had full access to all of 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: Einstein, Balter.
Acquisition of data: Einstein, Weiner, Bernheim, Kulon, Balter.
Analysis and interpretation of data: Einstein, Weiner, Bernheim, Bokhari, Johnson, Moses, Balter.
Drafting of the manuscript: Einstein.
Critical revision of the manuscript for important intellectual content: Einstein, Weiner, Bernheim, Kulon, Bokhari, Johnson, Moses, Balter.
Statistical analysis: Einstein.
Obtained funding: Einstein.
Administrative, technical, or material support: Weiner, Bernheim, Kulon, Bokhari, Johnson, Moses.
Study supervision: Einstein, Balter.
Financial Disclosures: Dr Einstein reported having served as a consultant for the International Atomic Energy Agency and for GE Healthcare, having received support for other research from Spectrum Dynamics and a Nuclear Cardiology Foundation grant funded by Covidien, and having received travel funding from GE Healthcare, INVIA, Philips Medical Systems, and Toshiba America Medical Systems. Dr Moses reported having served as a consultant for GE Healthcare. Dr Balter reported having served as a consultant for the International Atomic Energy Agency and Siemens. All other authors reported no disclosures.
Funding/Support: Dr Einstein was supported by a National Institutes of Health K12 institutional career development award (KL2 RR024157), by the Louis V. Gerstner, Jr. Scholars Program, and by the Lewis Katz Cardiovascular Research Prize for a Young Investigator.
Role of the Sponsor: The sponsors had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.