[1] Univ Arkansas Med Sci, Dept Neurosurg, Little Rock, AR 72205 USA
[2] Adv Pain Management, Greenfield, WI USA
[3] Pain Management Associates, Lees Summit, MO USA
[4] Nevro Corp, Redwood City, CA USA
[5] AES Compass Orlando, Orlando, FL USA
[6] Touchstone Intervent Pain Ctr, Medford, OR USA
[7] Walnut Creek, IPM Med Grp, Walnut Creek, CA USA
[8] Ochsner Hlth Syst, New Orleans, LA USA
[9] Cleveland Clin Fdn, Dept Pain Management, 9500 Euclid Ave, Cleveland, OH 44195 USA
[10] Swedish Med Ctr, Seattle, WA USA
[11] Nevada Adv Pain Specialists, Reno, NV USA
[12] Cent Florida Pain Relief Ctr, Orlando, FL USA
[13] Pain Care, Stockbridge, GA USA
[14] Coastal Orthoped & Sports Med, Bradenton, FL USA
[15] Weill Cornell Med Coll, Dept Anesthesiol, New York, NY USA
[16] Univ Kansas, Med Ctr, Dept Anesthesiol & Pain Med, Kansas City, KS 66103 USA
[17] Duke Univ, Dept Neurosurg, Durham, NC USA
[18] Boston PainCare, Waltham, MA USA
[19] United Hlth Serv, Dept Neurosurg, Johnson City, NY USA
[20] Univ Arkansas Med Sci, Dept Anesthesiol, Little Rock, AR 72205 USA
[21] Holy Cross Hosp, Ft Lauderdale, FL USA
[22] Albany Med Ctr, Dept Neurol, Albany, NY USA
[23] Cleveland Clin Fdn, Dept Endocrinol, 9500 Euclid Ave, Cleveland, OH 44195 USA
[24] Univ Glasgow, Inst Hlth & Well Being, Glasgow, Lanark, Scotland