Published Online: April 14, 2014. doi:10.1001/jamainternmed.2014.662.
Study concept and design: Samal, Linder.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Samal, Linder.
Critical revision of the manuscript for important intellectual content: Wright, Healey, Linder, Bates.
Statistical analysis: Samal, Linder.
Administrative, technical, or material support: Samal.
Study supervision: Wright, Linder, Bates.
Conflict of Interest Disclosures: None reported.
Additional Contributions: Julie Fiskio, BS, Division of General Medicine, Brigham and Women’s Hospital, provided assistance with data acquisition. She was compensated for her assistance.