Lee, June-Kyung Effect of Extracorporeal Shockwave Therapy Versus Intra-articular Injections of Hyaluronic Acid for the Treatment of Knee Osteoarthritis. [electronic resource] - Annals of rehabilitation medicine Oct 2017 - 828-835 p. digital Publication Type: Journal Article ISSN: 2234-0645 Standard No.: 10.5535/arm.2017.41.5.828 doi