Fig. 3From: The global state of research in nonsurgical treatment of knee osteoarthritis: a bibliometric and visualized studya The top 20 journals with most publications related to the nonsurgical treatment of knee OA. b The 20 main research orientations and the number of publications in each orientation. c The top 20 institutions of high-impact and the number of their publications. d The top 20 authors with most publications in this fieldBack to article page