1. Veterans Affairs Health Economics Resource Center, VA Palo Alto Health Care System, Menlo Park, California
2. Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, California
3. Department of Radiology, University of Washington, Seattle
4. Department of Neurological Surgery, University of Washington, Seattle
5. Department of Health Services, University of Washington, Seattle
6. Department of Clinical Epidemiology and Medical Informatics, Oregon Health & Science University, Portland
7. Department of Medicine, Oregon Health & Science University, Portland
8. Quantitative Research Unit, Stanford University Medical School, Stanford, California