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Cited institution (A), author cooperation analysis (B), and Three-Field Plot of author, keyword, and institution (C). Each node represents an institution or an author, and the line between the two nodes indicates that they have a co-occurrence relationship. Moreover, the closer the distance, the stronger the relationship (A,B). In (C), the leftmost square represents the author, the middle is the keyword, and the rightmost is the institution and longer squares mean more research.
