1. Center for Lawful Access and Abuse Deterrence; Washington District of Columbia U.S.A
2. Defense Veterans Center for Integrative Pain Management; Rockville Maryland U.S.A
3. Division of Pharmacoepidemiology and Pharmacoeconomics; Department of Medicine; Brigham and Women's Hospital; Boston Massachusetts U.S.A
4. Department of Anesthesia, Critical Care, and Pain Medicine; Massachusetts General Hospital; Harvard Medical School; Boston Massachusetts U.S.A
5. Department of Anesthesiology; Columbia University Medical Center; New York New York U.S.A
6. Center for Precision Medicine; Columbia University College of Physicians & Surgeons; New York New York U.S.A