Cervical Disc Disease

• Department of Orthopaedics, J. Dietl Specialist Hospital — Krakow, Lesser Poland Voivodeship, Poland
• Department of Neurosurgery, Medical University of Warsaw — Warsaw, Masovian Voivodeship, Poland

• Zuyderland Medical Center — Maastricht, Limburg, Netherlands

• Duly Health and Care — Naperville, Illinois, United States
• Columbia Orthopedic Group Research — Columbia, Missouri, United States
• Atlantic Brain and Spine — Wilmington, North Carolina, United States

• Carolina Neurosurgery and Spine Associates — Charlotte, North Carolina, United States
• Texas Back Institute — Plano, Texas, United States

• UC Irvine Medical Center — Orange, California, United States
• Hartford Healthcare Bone & Joint Institute — Hartford, Connecticut, United States
• MedStar Health Research Institute — Hyattsville, Maryland, United States
• NY Spine Institute — New York, United States

• Strenge Spine — Paducah, Kentucky, United States

Not specified

• CH WAPI — Tournai, Belgium
• Clinique Belharra — Bayonne, France
• Clinique du Parc — Castelnau-le-Lez, France
• Groupe Hospitalier La Rochelle-Re-Aunis — La Rochelle, France

• Fatih Bali — Istanbul, Kucukcekmece, Turkey (Türkiye)

• Nur Doğanlar — Afyonkarahisar, Turkey (Türkiye)