Fig. 2
From: A 2-decade bibliometric analysis of epigenetics of cardiovascular disease: from past to present
Timeline visualization of networks of co-occurring keywords for the period 2000–2022 (A) and 2017–2022 (B). Note: Each node is representative of a co-occurring keyword, with the color of the node depending on the average publication year of all articles containing this keyword. A brighter node refers to a keyword that emerged more recently. The tree rings surrounding the nodes represent citation bursts of co-occurring keywords. The networks are weighted on total link strength across different nodes and scored on the average publication years. The identified cluster labels are marked in red, and placed on the right side of the networks