Published Online: June 1, 2015. doi:10.1001/jamainternmed.2015.2062.
Study concept and design: Tapper.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Tapper.
Critical revision of the manuscript for important intellectual content: Sengupta, Lai, Horowitz.
Statistical analysis: Tapper.
Study supervision: Tapper.
Conflict of Interest Disclosures: None reported.
Additional Contributions: We thank J. Thomas Lamont, MD, for his guidance and mentorship, for which he received no compensation.