1. Orthopedic Rehabilitation Services, Gensingen, Germany.
2. Scoliosis 3DC, Woburn, MA, USA.
3. Orttech-Plus Rehabilitation Services, Kharkov, Ukraine.
4. Wanchai Chiropractic Clinic, Wanchai, Hong Kong.
5. Power Schroth Corrective Exercise Center, Seoul, Korea.
6. Nan Xiaofeng's Spinal Orthopedic Workshop, Xi'an Shanxi, China.