Author Contributions: Drs Page and Sherwin had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Page, Chan, Roehmholdt, Constable, Sherwin.
Acquisition of data: Page, Chan, Arora, Belfort-DeAguiar, Roehmholdt, Cline, Constable.
Analysis and interpretation of data: Page, Chan, Arora, Belfort-DeAguiar, Dzuira, Roehmholdt, Naik, Sinha, Constable, Sherwin.
Drafting of the manuscript: Page, Chan, Arora, Dzuira, Roehmholdt, Naik, Constable, Sherwin.
Critical revision of the manuscript for important intellectual content: Page, Belfort-DeAguiar, Dzuira, Cline, Sinha, Constable, Sherwin.
Statistical analysis: Page, Chan, Arora, Belfort-DeAguiar, Dzuira, Naik, Constable, Sherwin.
Obtained funding: Sherwin.
Administrative, technical, or material support: Page, Sinha, Constable, Sherwin.
Study supervision: Page, Sinha, Constable, Sherwin.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Sinha reported serving as an advisor for Embera Neurotherapeutics and serving as a consultant for the National Institutes of Health. Dr Sherwin reported serving as a consultant or scientific advisor for Amylin Corp, Merck, Pfizer, Bristol-Myers Squibb, Janssen, Novartis, Eli Lilly, MannKind, McKinsey, and Insulet; and holding stock or stock options in Insulet. No other authors reported disclosures.
Funding/Support: This study was supported in part by grants from the National Institutes of Health (DK 20495, P30 DK 45735, T32 DK07058) and the Yale Center for Clinical Investigation supported by the Clinical Translational Science Award (grant UL1 RR024139).
Role of the Sponsors: The funding agencies had no role in the design and conduct of the study; the collection, management, analysis, and interpretation of the data; or the preparation, review, or approval of the manuscript.
This article was corrected for errors on February 7, 2013.