[1] Natl Univ Hlth Sci, Lombard, IL 60148 USA
[2] Stanford Hlth Care, Qualcomm Hlth Ctr, San Diego, CA 92121 USA
[3] Univ Calif Los Angeles, Sch Publ Hlth, Dept Epidemiol, Los Angeles, CA 90024 USA
[4] Univ Calif Irvine, Dept Neurol, Irvine, CA 92717 USA
[5] World Spine Care, Santa Ana, CA USA
[6] Oregon Hlth & Sci Univ, Dept Med Informat & Clin Epidemiol, Portland, OR 97201 USA
[7] Oregon Hlth & Sci Univ, Dept Med, Portland, OR 97201 USA
[8] NYU, Dept Orthoped Surg, New York, NY USA
[9] NYU, Dept Environm Med, 550 1st Ave, New York, NY 10016 USA
[10] World Spine Care Europe, Holmfirth, England
[11] Univ Ontario Inst Technol, Fac Hlth Sci, Oshawa, ON, Canada
[12] UOIT CMCC Ctr Disabil Prevent & Rehabil, Toronto, ON, Canada
[13] Univ Hawaii Manoa, Off Publ Hlth Studies, Honolulu, HI 96822 USA
[14] Canadian Mem Chiropract Coll, Dept Res, Toronto, ON, Canada
[15] Univ Toronto, Dept Family & Community Med, Toronto, ON, Canada
[16] ARTES Spine Ctr, Ankara, Turkey
[17] Geneva Univ Hosp, Ctr Multidisciplinary Pain, Div Gen Med Rehabil, Geneva, Switzerland
[18] Geneva Univ Hosp, Ctr Multidisciplinary Pain, Div Clin Pharmacol & Toxicol, Geneva, Switzerland
[19] Univ Montreal, Fac Med, Certificat Program Insurance Med & MedicoLegal Ex, Toronto, ON, Canada
[20] Ghana World Spine Care, Ridge Reg Hosp, Accra, Greater Accra, Ghana
[21] Acibadem Univ, ARTES Spine Ctr, Ankara, Turkey
[22] Ghurki Trust Teaching Hosp, Orthopaed & Spine Dept, Lahore, Punjab, Pakistan
[23] Univ Valencia, Hosp Univ & Politecn La Fe, Dept Surg, Valencia, Spain
[24] Univ Sydney, Concord Clin Sch, Concord, NSW, Australia
[25] George Washington Univ, Med Ctr, Arthrit & Rheumatism Associates, Potomac, MD USA
[26] World Spine Care, Tampa, FL USA
[27] Univ Melbourne, Sch Populat & Global Hlth, Ctr Hlth Policy, Melbourne, Vic, Australia
[28] Michaels Hosp, N York, ON, Canada
[29] Carlos III Inst Hlth, Natl Sch Occupat Med, Madrid, Spain
[30] Univ Complutense, Phys Med & Rehabil, Madrid, Spain
[31] Cincinnati Vet Affairs Med Ctr, Rehabil Care Line Phys Med & Rehabil, Cincinnati, OH USA
[32] Univ Tehran Med Sci, Rheumatol Res Ctr, Tehran, Iran
[33] HFR Fribourg Hosp Cantonal, Dept Rheumatol, Fribourg, FR, Switzerland
[34] Univ Cape Town, Groote Schuur Hosp, Dept Orthopaed Surg, Cape Town, Western Cape, South Africa
[35] Princess Marina Hosp, Dept Orthoped, Gaborone, Botswana
[36] Univ La Plata, La Plata, Buenos Aires, Argentina
[37] NYU, Dept Orthoped Surg, Piermont, NY USA
[38] Panorama Medi Clin, Private Practice, Cape Town, Western Cape, South Africa
[39] Groote Schuur Hosp, Cape Town, Western Cape, South Africa
[40] Palmer Coll Chiropract, Spine Inst Qual, Davenport, IA USA
[41] Nottingham Univ Hosp, Nottingham, England
[42] Mohammed VI Univ Hlth Sci UM6SS, Casablanca, Morocco
[43] Univ Southern Denmark, Dept Sports Sci & Clin Biomechan, Odense, Denmark
[44] Nord Inst Chiropract & Clin Biomech, Odense, Denmark
[45] Univ Kansas, Med Ctr, Dept Anesthesiol, Kansas City, KS 66103 USA
[46] Univ St Augustine Hlth Sci, Doctor Phys Therapy Program, Coll Rehabilitat Sci, San Marcos, CA USA
[47] Univ Ottawa, Sch Sociol & Anthropol Studies, Ottawa, ON, Canada
[48] Inst Franco Europeen Chiropraxie, Toulouse, France
[49] US Spine & Sport Fdn, San Diego, CA USA
[50] Canadian Mem Chiropract Coll, Toronto, ON, Canada