Liver function linked to bone health: A bibliometric of the liver-bone axis

Figure 5 Analysis of keyword. A: Network visualization of keywords. Each sphere represents one keyword, and the lines between the spheres represent the co-occurrence of two keyword. Different colors represent different clusters. The threshold is 20; B: Overlay visualization of keywords. The different colors represent the mean time the keyword appears. The threshold is 20; C: The timeline of keywords. Each circle represents one keyword. The position on the axis represents the time of the first appearance of the keyword. The colors of the rings represent the different time periods in which the keyword appeared, and the size of the ring represents the frequency of the keyword in a period. The line between two circles represents the co-occurrence of two keywords; D: Top 30 keywords with the strongest citation bursts by year. The yellow bars indicate the beginnings and ends of citation bursts.