1. Xiangya Hospital, Central South University, Changsha, China, the University of Nottingham, and Pain Centre Versus Arthritis UK Nottingtham United Kingdom
2. Xiangya Hospital, Central South University Changsha China
3. Massachusetts General Hospital, Harvard Medical School Boston
4. University of Nottingham and Pain Centre Versus Arthritis UK Nottingham United Kingdom
5. University of Bristol Bristol United Kingdom
6. University of Exeter Exeter United Kingdom
7. Xiangya Hospital, Central South University, and Xiangya School of Public Health, Central South University Changsha China