Research status and hotspots in transjugular intrahepatic portosystemic shunts based on CiteSpace bibliometric analysis

Figure 3 Network map. A: Network map of national cooperation. Each node represents a country. The purple outer circle of a node indicates a high degree of betweenness centrality. The color and thickness of the inner circle of a node represent the number of publications in different years. The size of the node is proportional to the total number of publications. The lines between countries represent cooperative relationships, and the color of the line represents the first instance of cooperation. The thicker the line is, the closer the cooperation; B: Network map of institutional cooperation. Each node represents an institution. The purple outer circle of a node indicates a high degree of betweenness centrality. The color and thickness of the inner circle of a node represent the number of publications in different years. The size of the node is proportional to the total number of publications. The lines between institutions represent cooperative relationships, and the color of the line represents the first instance of cooperation. The thicker the line is, the closer the cooperation; C: Network map of authors’ cooperation. Each node represents an author. The purple outer circle of a node indicates a high degree of betweenness centrality. The color and thickness of the inner circle of a node represent the number of publications in different years. The size of the node is proportional to the total number of publications. The lines between authors represent cooperative relationships, and the color of the line represents the first instance of cooperation. The thicker the line is, the closer the cooperation.