Fig. 7
From: A Bibliometric Analysis of Global Research Trends in Blood Pressure Variability
Network of keywords related to BPV. A The 158 keywords that occurred more than 35 times were divided into 4 clusters by different colors: cluster 1: red; cluster 2: green; cluster 3: blue; and cluster 4: yellow. The size of the nodes represents the frequency of occurrence. B Visualization of keywords according to the average publication year (APY). Keywords in yellow appeared later than those in blue. (C) Top 20 representative burst keywords