Study concept and design: Wallia, Molitch.
Acquisition, analysis, or interpretation of data: Wallia, Molitch.
Drafting of the manuscript: Wallia, Molitch.
Critical revision of the manuscript for important intellectual content: Wallia, Molitch.
Administrative, technical, or material support: Molitch.
Study supervision: Molitch.
Conflict of Interest Disclosures: The authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Wallia reports having received research grant funding support from Merck and honoraria from Janssen. Dr Molitch reports having received research grant support from sanofi-aventis, Eli Lilly & Co, NovoNordisk, Novartis, and Bayer and has received honoraria for consultations from Abbott Laboratories, Merck, NovoNordisk, Eli Lilly & Co, Novartis, Bristol-Myers Squibb, AstraZeneca, and Janssen. No other disclosures were reported.
Additional Contributions: We thank Teresa Derby, BS, Northwestern University research study assistant, for assistance in development of the figures and in reference management. No compensation was received outside of her regular salary.