Spinal Stenosis

• Armed Forces Yangju Hospital — Yangju, Gyounggido, South Korea

• HOPE Research Institute — Phoenix, Arizona, United States
• Center for Pain and Supportive Care — Scottsdale, Arizona, United States
• Pain Clinic of Monterey Bay — Aptos, California, United States
• Pain Control Associates of San Diego — Chula Vista, California, United States

• Kaiser Permanente Spine Care Program — Oakland, California, United States
• University of California, San Francisco (UCSF) — San Francisco, California, United States
• Emory University, The Emory Clinic — Decatur, Georgia, United States
• Rush-Presbyterian, St. Luke's Medical Center — Chicago, Illinois, United States

• Kaiser Permanente Spine Care Program — Oakland, California, United States
• University of California, San Francisco — San Francisco, California, United States
• The Emory Clinic, Emory University — Decatur, Georgia, United States
• Rush-Presbyterian, St. Luke's Medical Center — Chicago, Illinois, United States

• Kaiser Permanente Spine Care Program — Oakland, California, United States
• University of California, San Francisco (UCSF) — San Francisco, California, United States
• Emory University, The Emory Clinic — Decatur, Georgia, United States
• Rush-Presbyterian, St. Luke's Medical Center — Chicago, Illinois, United States

• SUNY Upstate Medical University-Department of Orthopedics — Syracuse, New York, United States

• St.Olavs Hospital — Trondheim, Norway

• National Clinical Research Center, Korean Medicine Hospital, Pusan National University — Yangsan, Kyungsangnamdo, South Korea

Not specified

• Pain Medicine Center — Chicago, Illinois, United States