1. Department of Pharmacy Systems, Outcomes & Policy, University of Illinois at Chicago, Chicago, IL 60612, USA
2. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
3. Center for Drug Safety & Effectiveness, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
4. Division of General Internal Medicine, Department of Medicine, Johns Hopkins Medicine, Baltimore, MD 21205, USA
5. Academy of Managed Care Pharmacy, Alexandria, VA 22314, USA
6. Department of Pharmaceutical Heath Services Research, University of Maryland, Baltimore, MD 21201, USA
7. National Health Council, Washington, DC 20036, USA