Journal of Rehabilitation Medicine 51-11 | Page 13

Pulsed electromagnetic field therapy for knee osteoarthritis ACKNOWLEDGEMENTS This work was supported by the National Natural Science Foundation of China (31870961), the International Cooperation Project of Sichuan Provincial Science and Technology Depart- ment (2015HH0049), the Sino-German Center for Research Promotion (GZ1219), and the National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University (Z2018A11). The authors would like to thank International Science Editing Co. for editing the language. The authors have no conflicts of interest to declare. REFERENCES 1. Neogi T, Zhang Y. Epidemiology of osteoarthritis. Rheum Dis Clin North Am 2013; 39: 1–19. 2. Syx D, Tran PB, Miller RE, Malfait AM. Peripheral mecha- nisms contributing to osteoarthritis pain. Curr Rheumatol Rep 2018; 20: 9. 3. Martel-Pelletier J, Barr AJ, Cicuttini FM, Conaghan PG, Cooper C, Goldring MB, et al. Osteoarthritis. Nat Rev Dis Primers 2016; 2: 16072. 4. 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