Published Online: September 15, 2014. doi:10.1001/jamainternmed.2014.3431.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Hsia.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Le.
Obtained funding: Hsia.
Administrative, technical, or material support: Hsia.
Study supervision: Hsia.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by an American Heart Association National Clinical Research Program Award (Dr Hsia).
Role of the Sponsor: The funding source had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.