Chronic Low Back Pain

• Site Reference ID/Investigator# 10044 — Huntsville, Alabama, United States
• Site Reference ID/Investigator# 10070 — Burbank, California, United States
• Site Reference ID/Investigator# 10050 — San Diego, California, United States
• Site Reference ID/Investigator# 10060 — Atlantis, Florida, United States

• Site Reference ID/Investigator# 54875 — Tucson, Arizona, United States
• Site Reference ID/Investigator# 54876 — Anaheim, California, United States
• Site Reference ID/Investigator# 54877 — Burbank, California, United States
• Site Reference ID/Investigator# 54873 — Lomita, California, United States

• Institute of Sport Science and Sport — Erlangen, Bavaria, Germany
• Paracelsus-Klinik an der Gande — Bad Gandersheim, Lower Saxony, Germany
• Klinik Weser — Bad Pyrmont, Lower Saxony, Germany

• Birmingham, Alabama, United States
• Phoenix, Arizona, United States
• Carlsbad, California, United States
• National City, California, United States

• Orthopedic Hospital Vienna Speising — Vienna, State of Vienna, Austria

Not specified

• Weill Medical College of Cornell University — New York, United States

• Dorchester Multi-Service Center — Dorchester, Massachusetts, United States
• Codman Square Health Center — Dorchester, Massachusetts, United States

• Haukeland University Hospital — Bergen, Norway
• Ullevål University Hospital, Orthopedic Centre — Oslo, Norway
• Stavanger University Hospital — Stavanger, Norway
• University Hospital of Nothern-Norway — Tromsø, Norway

• o Institute for Social Medicine, Epidemiology, and Health Economics, Charité University Medical Center — Berlin, Germany