Figures & data
Notes: (A) The number of publication outputs and growth trend from 2000 to 2021. (B) The number of annual citations from 2000 to 2021.
Notes: The higher the density, the closer it is to red. Conversely, the lower the density, the closer it is to blue.
Notes: Bold: citation burst strength >30. The light blue bar indicates that the reference has not yet appeared, the dark blue bar indicates that the reference has started to appear, and the red line represents the burst time.