1 Department of Anesthesiology, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA. iurits@bidmc.harvard.edu.
2 Department of Anesthesiology, Creighton University School of Medicine, Omaha, NE, USA.
3 Department of Anesthesiology, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
4 Department of Anesthesiology, Mount Sinai Medical Center, Miami Beach, FL, USA.
5 Department of Pain Medicine, Pain Specialty Group, Newington, NH, USA.
6 Harvard Medical School, Boston, MA, USA.
7 Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
8 Pain Management Centers of America, Paducah, KY, USA.
9 Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA, USA.
10 Department of Anesthesiology, Louisiana State University Health Shreveport, Shreveport, LA, USA.
11 Valley Anesthesiology and Pain Consultants-Envision Physician Services, Phoenix, AZ, USA.
12 Department of Anesthesiology, University of Arizona College of Medicine-Phoenix, Phoenix, AZ, USA.