[1] Ctr Pain Relief, Charleston, WV 25301 USA
[2] Univ Calif Los Angeles, Los Angeles, CA USA
[3] Univ Florida, Jacksonville, FL USA
[4] Massachusetts Gen Hosp, Boston, MA 02114 USA
[5] Harvard Univ, Sch Med, Boston, MA USA
[6] CHUV Univ Hosp, Lausanne, Switzerland
[7] EHC Hosp, Anaesthesia & Pain Management Dept, Morges, Switzerland
[8] Houston Pain Associates LLC, Houston, TX USA
[9] Tri State LLC, Ctr Pain Relief, Huntington, WV USA
[10] Royal N Shore Hosp, Kolling Inst Med Res, Sydney, NSW, Australia
[11] Univ Valencia, Sch Med, Valencia, Spain
[12] Gen Univ Hosp, Valencia, Spain
[13] Suny Downstate Med Ctr, Staten Isl, NY USA
[14] Univ Hosp, New York, NY USA
[15] Johns Hopkins Univ, Sch Med, Dept Anesthesiol, Baltimore, MD USA
[16] Johns Hopkins Univ, Sch Med, Dept Crit Care Med, Baltimore, MD USA
[17] Johns Hopkins Univ, Sch Med, Dept Oncol, Baltimore, MD 21205 USA
[18] Napa Pain Inst, Napa, CA USA
[19] Vanderbilt Univ, Nashville, TN USA
[20] Christiana Hosp, Newark, DE USA
[21] Bryn Mawr Hosp, Bryn Mawr, PA USA
[22] Univ Saskatchewan, Regina, SK, Canada
[23] Stanford Univ, Palo Alto, CA 94304 USA
[24] St Antonius Hosp, Nieuwegein, Netherlands
[25] Integrated Pain Solut, Columbus, OH USA
[26] Natl Inst Pain, Lutz, FL USA
[27] Carolinas Pain Inst, Winston Salem, NC USA
[28] Wake Forest Univ, Sch Med Baptist Hlth, Winston Salem, NC 27109 USA
[29] Thomas Jefferson Univ, Jefferson Med Coll, MossRehab, Philadelphia, PA 19107 USA
[30] Thomas Jefferson Univ, Jefferson Med Coll, Dept Rehabil Med, Philadelphia, PA 19107 USA
[31] Adv Pain Therapy PLLC, Hattiesburg, MS USA
[32] Premier Pain Management Ctr, Shrewsbury, NJ USA
[33] Cleveland Clin, Dept Pain Management, Cleveland, OH 44106 USA
[34] Ctr Pain & Support Care, Phoenix, AZ USA
[35] Univ Calif San Diego, La Jolla, CA 92093 USA
[36] Univ Alabama Birmingham, Sch Nursing, Birmingham, AL USA
[37] Alabama Pain Ctr, Huntsville, AL USA
[38] Univ Kentucky, Lexington, KY USA
[39] Neurovat Clin Res & Educ, Napa, CA USA