Accepted for Publication: June 11, 2012.
Published Online: August 27, 2012. doi:10.1001/archinternmed.2012.4276
Author Contributions:Study concept and design: Parker, Margolis, and O’Connor. Acquisition of data: Margolis, Trower, Magid, Tavel, Shetterly, Swain, and O’Connor. Analysis and interpretation of data: Parker, Margolis, Ho, and O’Connor. Drafting of the manuscript: Parker, Margolis, Trower, Swain, and O’Connor. Critical revision of the manuscript for important intellectual content: Parker, Magid, Tavel, Shetterly, and Ho. Statistical analysis: Parker and Trower. Obtained funding: Magid and O’Connor. Study supervision: Margolis.
Financial Disclosure: None reported.
Funding/Support: This project was funded by grant NIH/NHLBI/U19 HL091179 from the National Heart, Lung, and Blood Institute and subcontract to HealthPartners Institute for Education and Research.