| Affiliation: | 1. Division of Infectious Diseases, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, , Philadelphia, PA, USA;2. Center for Clinical Epidemiology and Biostatistics, Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, , Philadelphia, PA, USA;3. Division of Gastroenterology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, , Philadelphia, PA, USA;4. HealthPartners Institute for Education and Research, , Bloomington, MN, USA;5. HealthCore, Inc., , Wilmington, DE, USA;6. Engelberg Center for Health Care Reform, The Brookings Institution, , Washington, DC, USA;7. Pharmacy Analytical Service, Kaiser Permanente Southern California, , Downey, CA, USA;8. Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, , Boston, MA, USA;9. Group Health Research Institute, , Seattle, WA, USA;10. Vanderbilt University School of Medicine, , Nashville, TN, USA;11. Competitive Health Analytics, Humana Inc., , Louisville, KY, USA;12. Marshfield Clinic Research Foundation, , Marshfield, WI, USA;13. U.S. Food and Drug Administration, , Silver Spring, MD, USA |
