Published Online: August 13, 2012. doi:10.1001/archinternmed.2012.2836
Author Contributions: Dr Ong 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: Ong, Magrabi, and Coiera. Acquisition of data: Ong and Magrabi. Analysis and interpretation of data: Ong, Magrabi, Jones, and Coiera. Drafting of the manuscript: Ong. Critical revision of the manuscript for important intellectual content: Ong, Magrabi, Jones, and Coiera. Statistical analysis: Ong. Obtained funding: Coiera. Administrative, technical, and material support: Jones. Study supervision: Magrabi and Coiera.
Financial Disclosure: None reported.
Funding/Support: This project was supported in part by grant 568612 from the Australian National Health and Medical Research Council.
Additional Contributions: We thank Frank Lin, MBBS, PhD, for his involvement in the conception of the study and for sharing his expertise; David Roffe, Robert Flanagan, and Ed Tinker for providing access to the data; and Thuy Huynh for providing administrative assistance.