1. Department of Health Services; School of Public Health; University of Washington; Seattle Washington
2. Department of Pharmacy; School of Pharmacy; University of Washington; Seattle Washington
3. National Bureau of Economic Research; Cambridge Massachusetts
4. Division of General Internal Medicine; School of Medicine; University of Washington; Seattle Washington
5. Kaiser Permanente Washington Health Research Institute; Kaiser Permanente Washington; Seattle Washington
6. Department of Medical Ethics and Health Policy; Perelman School of Medicine; University of Pennsylvania; Philadelphia Pennsylvania