Dartmouth General Hospital, Dartmouth, Canada
Cedars-Sinai Medical Center Institute for Spinal Disorders, Los Angeles, California, United States
Orthopaedic Specialties, Clearwater, Florida, United States
Fort Wayne Orthopedics, Fort Wayne, Indiana, United States
Hospital Torrecardenas, Almeria, Spain
Clinique des Fontaines, Meulin, France
A. ö Landeskrankenhaus Gmunden, Gmunden, Austria
CHU Hôpital Sud, Grenoble, France
CHU Pellegrin Tripode, Bordeaux, France
Polyclinique de Hénin Beaumont, Henin-beaumont, France
Indiana University Neurosurgical, Indianapolis, Indiana, United States
Park Plaza Hospital, Houston, Texas, United States
Heartland Spine and Hand Center, Overland Park, Kansas, United States
Haga ziekenhuis, DenHaag, Netherlands
St Elisabeth Hospital, Tilburg, Netherlands
Diaconessehuis, Leiden, Netherlands
Southmead Hospital, Bristol, United Kingdom
Robert Jones & Agnes Hunt Orthopaedic & District Hospital NHS Trust, Oswestry, United Kingdom
William Harvey Hospital, Ashford, Kent, United Kingdom
Elisabeth ziekenhuis, Tilburg, Netherlands