Fig. 2

Institutional collaboration network of anti-diabetic drug research in China. This network is visualized and analyzed by using software Gephi, it comprises 430 nodes and 7673 undirected weighted edges. A node represents a research institution and node size depends on degree centrality while edge thickness between two nodes is determined by the number of co-publications between them. Research institutions from mainland China and Taiwan are represented in cyan and yellow respectively, and magenta represents those from both Hong Kong and Macao. Only the names of the more active nodes are shown here