Published Online: April 15, 2013. doi:10.1001/jamainternmed.2013.379
Author Contributions:Study concept and design: Z. Harel, S. Harel, Mamdani, and Bell. Acquisition of data: Z. Harel, S. Harel, and Bell. Analysis and interpretation of data: Z. Harel, Wald, and Mamdani. Drafting of the manuscript: Z. Harel, S. Harel, and Bell. Critical revision of the manuscript for important intellectual content: Z. Harel, S. Harel, Wald, Mamdani, and Bell. Statistical analysis: Z. Harel, S. Harel, and Mamdani. Administrative, technical, and material support: Wald and Mamdani. Study supervision: Bell.
Conflict of Interest Disclosures: None reported.
Funding/Support: Dr Z. Harel is supported by a fellowship award jointly funded by team grant OTG-88591 from the Canadian Institutes of Health Research. Dr Bell holds a Canadian Institutes of Health Research and Canadian Patient Safety Institute Chair in Patient Safety and Continuity of Care.