1. Leonard D. Schaeffer Center for Health Policy & Economics Sol Price School of Public Policy, University of Southern California Los Angeles California USA
2. RAND Corporation Boston Massachusetts USA
3. Patient Reported Outcomes Value and Experience (PROVE) Center, Department of Surgery Brigham and Women's Hospital Boston Massachusetts USA
4. Pain Management, Opioid Safety, and PDMP Program Office Veterans Health Administration Washington District of Columbia USA
5. RAND Corporation Santa Monica California USA
6. UCLA Fielding School of Public Health Los Angeles California USA
7. RAND Corporation Arlington Virginia USA
8. NORC at the University of Chicago Chicago Illinois USA
9. Division of Health Care Financing, Department of Health and Human Services Office of Health Policy in the Office of the Assistant Secretary for Planning and Evaluation Washington District of Columbia USA
10. Abt Associates Cambridge Massachusetts USA
11. UCLA Borun Center Los Angeles California USA
12. Los Angeles VA GRECC Los Angeles California USA