Table 8.

Major clusters of co-cited references.

ClusterID	Size	Silhouette	mean(Year)	Label (LLR)
0	147	0.909	2012	social anxiety disorder (2942.16, 1.0E-4); generalized anxiety disorder (2677.77, 1.0E-4); functional connectivity (2162.61, 1.0E-4); neural correlate (1966.48, 1.0E-4); cortical thickness (1732.06, 1.0E-4)
1	136	0.869	2013	attention bias modification (10223.89, 1.0E-4); attentional bias modification (6138.64, 1.0E-4); attentional bia (4330.13, 1.0E-4); cognitive bias modification (2856.98, 1.0E-4); attention bias modification training (2352.02, 1.0E-4)
2	119	0.729	2019	attention allocation (1978.5, 1.0E-4); negative interpretation (1859.93, 1.0E-4); interpretation bia (1605.71, 1.0E-4); social anxiety (1505.02, 1.0E-4); interpretation bias task (1258.92, 1.0E-4)
3	113	0.815	2013	anxiety disorder (5632.3, 1.0E-4); treatment outcome (3170.66, 1.0E-4); childhood anxiety disorder (2773.16, 1.0E-4); fear extinction (1866.66, 1.0E-4); error-related brain activity (1764.53, 1.0E-4)
4	112	0.87	2012	experiential avoidance (2597.76, 1.0E-4); cognitive reappraisal (1739.63, 1.0E-4); emotion regulation (1687.37, 1.0E-4); cardiovascular responses (1359.52, 1.0E-4); positive v (1351.6, 1.0E-4)