Published Online: June 24, 2013. doi:10.1001/jamainternmed.2013.7756.
Study concept and design: Hauptman.
Acquisition of data: All authors.
Analysis and interpretation of data: Hauptman and McCann.
Drafting of the manuscript: Hauptman, McCann, and Ramirez Romero.
Critical revision of the manuscript for important intellectual content:
Hauptman, McCann, and Mayo.
Statistical analysis: Hauptman, McCann, and Ramirez Romero.
Administrative, technical, and material support: Hauptman, McCann, and Mayo.
Study supervision: Hauptman.
Conflict of Interest Disclosures: Dr Hauptman
received an honorarium for his participation in a CME event titled “Digoxin Toxicity:
Awareness, Recognition, and Treatment,” sponsored by BTG International Inc (released August
21, 2012, and available at http://theheart.medscape.org/viewarticle/767832 [sign-up required]).
Correction: This article was corrected online on June 26, 2013, to add a text
citation for the eSupplement.