Current trends and hotspots of depressive disorders with colorectal cancer: A bibliometric and visual study

Figure 7 Cluster map of keywords. A: Co-occurrence cluster analysis of the top 414 Keywords. Cluster map of authors who appeared at least five times. Visualization map of publications by 414 authors forming nine collaborating clusters (nodes with the same color). The node labels show the keywords, and the size of each node refers to the frequency of the keywords. A link connecting two nodes represents a co-occurrence relationship between two keywords. Circles and labels form a cell, and cells of different colors form different clusters; B: The main keywords contained in the red cluster and their occurrences; C: CiteSpace visualization map of top 30 keywords with strongest citation bursts. Red bars mean that some keywords are cited frequently in a certain period.