Lumbar Spinal Stenosis

• Peking University Third Hospital — Beijing, China
• Third Affiliated hospital of Southern medical university — Guangzhou, China
• Zhejiang Provincial Hospital of Chinese Medicine — Hangzhou, China

• University of Colorado Anschutz Medical Campus — Aurora, Colorado, United States

• Sapienza University of Rome, Policlinico Umberto I Hospital — Rome, Italy

• Evolve Restorative Center — Santa Rosa, California, United States
• The Raso Pain Center — Jupiter, Florida, United States
• Koga Neurosurgery — Slidell, Louisiana, United States
• National Spine and Pain Centers — Oxon Hill, Maryland, United States

• University of Tennessee Graduate School of Medicine — Knoxville, Tennessee, United States

• Department of Orthopedics, Affiliated Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430023 — Wuhan, Hubei, China

Not specified

• Charité - Universitätsmedizin Berlin — Berlin, State of Berlin, Germany

• 4th Military Clinical Hospital with Polyclinic — Wroclaw, Poland

• Marmara University Pendik Training and Research Hospital — Istanbul, Pendik, Turkey (Türkiye)