Tumor

• Investigator Site - Higland — Highland, California, United States
• Investigator Site - Los Angeles — Los Angeles, California, United States
• Investigator Site - Newport Beach — Newport Beach, California, United States
• Investigator Site - West Palm Beach — West Palm Beach, Florida, United States

• Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil — Bochum, North Rhine-Westphalia, Germany

Not specified

• Academy of Military Medical Affiliated Hopital — Beijing, China

• Stanford Health Care — Redwood City, California, United States

• Palo Alto Medical Foundation — Palo Alto, California, United States
• Alvarado Orthopedic Clinic — San Diego, California, United States
• American health Network — Avon, Indiana, United States
• Raliegh Orthopedic Research Foundation — Raleigh, North Carolina, United States

• Children's Hospital of Wisconsin — Milwaukee, Wisconsin, United States

• Fudan University Cancer Center — Shanghai, Shanghai Municipality, China

• Chang Gung Memorial Hospital — Taipei, Taiwan

• Montgomery Spine Center — Montgomery, Alabama, United States
• Tallahassee Neurological Clinic — Tallahassee, Florida, United States
• Community Neurosurgery — Indianapolis, Indiana, United States
• Maryland Spine and Brain — Annapolis, Maryland, United States