Fig. 1: Left and right subgenual cingulate SDMs, 95% CIs and relative weights for studies included in the meta-analyses. Results are presented for combined groups, unipolar, bipolar, family history positive and family history negative subjects. SDM = standard difference between means; CI = confidence interval; FH- = family history negative; FH+ = family history positive; FH? = family history status not provided; BD = bipolar disorder; UD = unipolar depression.