Intervertebral Disc Degeneration

• Boulder Neurosurgical Associates — Boulder, Colorado, United States
• Total Spine Care — Canton, Connecticut, United States
• Middlesex Orthopedic Surgeons — Middletown, Connecticut, United States
• Center for Advanced Neuro and Spine — New Britain, Connecticut, United States

• BG Unfallklinik — Frankfurt am Main, Germany
• Schon Klinik Munchen — München, Germany
• UVN — Ružomberok, Slovakia

• Memorial Health University Medical Center — Savannah, Georgia, United States

Not specified

• Bergman Clinics — Naarden, Netherlands

Not specified

Not specified

• Texas Back Institute-West — Phoenix, Arizona, United States
• Southern California Institute of Neurological Surgery — Escondido, California, United States
• Massoudi & Jackson Neurosurgical Association — Laguna Hills, California, United States
• Memorial Orthopaedic Surgical Group — Long Beach, California, United States

• Department of Neurosurgery, Bergman Clinics — Naarden, Netherlands

Not specified