Published Online: May 4, 2015. doi:10.1001/jamainternmed.2015.1292.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Lee.
Administrative, technical, or material support: All authors.
Conflict of Interest Disclosures: None reported.
Additional Contributions: Ramy R. Saleh, MD, Department of Medicine, McGill University, reviewed the manuscript. We thank the resident physicians who collected the data in the context of patient care, as well as our attending physicians, who strive to provide patients with the best care. None of the contributors were compensated.