1. Matthew L. Maciejewski ( ) is a research career scientist at the Center for Health Services Research in Primary Care, Durham Veterans Affairs Medical Center, and a professor in the Division of General Internal Medicine, Department of Medicine, at Duke University, both in Durham, North Carolina.
2. Daryl Wansink is director of health economics at Blue Cross Blue Shield of North Carolina, in Durham.
3. Jennifer H. Lindquist is a statistician at the Center for Health Services Research in Primary Care, Durham Veterans Affairs Medical Center.
4. John C. Parker was an analyst at Blue Cross Blue Shield of North Carolina at the time of this analysis. He is now a lead quantitative scientist in PACE Affairs at GlaxoSmithKline in Research Triangle Park, North Carolina.
5. Joel F. Farley is an associate professor in the Division of Pharmaceutical Outcomes and Policy, University of North Carolina at Chapel Hill.