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Table 2 Studies available for meta-analysis.

From: Structural brain change in Attention Deficit Hyperactivity Disorder identified by meta-analysis

Meta-Analysis

Gray matter signal change

Number of studies

Number of patients

Number of comparison subjects

Number of co-ordinates

Studies included [references]

A

Decrease

7

114

143

59

15, 16, 17, 18, 19, 20

B

Increase

4

43

71

17

15, 19, 20