Fig. 4From: The global state of research in nonsurgical treatment of knee osteoarthritis: a bibliometric and visualized studyBibliographic coupling analysis of worldwide research on nonsurgical treatment of knee OA. a Mapping on the 315 identified journals on nonsurgical treatment of knee OA. b Mapping on 815 institutions on nonsurgical treatment of knee OA. c Mapping on the 69 countries in this field. The line between two icons in the figure indicates that two journals/institutions/countries had created a similarity relationshipBack to article page