Fig. 2From: Triangulating meta-analyses: the example of the serotonin transporter gene, stressful life events and major depressionDistribution of P-values (P-curve) for studies showing evidence of a positive interaction in Karg et al. [10]. The observed distribution of P-values (P-curve) includes 23 significant (i.e., < 0.05) P-valuesBack to article page