Supplementary Figure 3: The effect of normalization approaches on cis-eQTL signals.
From: Genetic variability in the regulation of gene expression in ten regions of the human brain

(a) Comparison of the regression coefficients for cis-eQTL analysis when all tissues are normalized together vs. when each tissue is normalized separately. (b) Comparison of the p-value of regression coefficients for cis-eQTL analysis when all tissues are normalized together vs. when each tissue is normalized separately.