Published Online: October 3, 2013. doi:10.1001/jamainternmed.2013.11673.
Study concept and design: Both authors.
Acquisition of data: Both authors.
Analysis and interpretation of data: Both authors.
Drafting of the manuscript: Both authors.
Critical revision of the manuscript for important intellectual content: Both authors.
Statistical analysis: Both authors.
Obtained funding: Linder.
Administrative, technical, or material support: Linder.
Study supervision: Linder.
Conflict of Interest Disclosures: Dr Barnett consults as a medical advisor to a start-up company, Ginger.io, which has no relationship to this research. No other disclosures are reported.
Funding/Support: Dr Linder’s work on acute respiratory infections is supported by grant RC4 AG039115 from the National Institutes of Health, grant R21 AI097759 from the National Institute of Allergy and Infectious Diseases, and grant R18 HS018419 from the Agency for Healthcare Research and Quality.
Role of the Sponsors: The sponsors had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Previous Presentations: This research was presented in part at the Society of General Internal Medicine Annual Meeting; April 25, 2013; Denver, Colorado; and at IDWeek; October 4, 2013; San Francisco, California.