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Volcano plots illustrating differential gene expression in the methamphetamine high drinking (MAHDR) and methamphetamine low drinking (MALDR) selected lines across brain regions. Brain regions analyzed were the (a) ventral midbrain (VMB); (b) prefrontal cortex (PFC); and (c) nucleus accumbens (NAc). Genes significantly differentially expressed between the MAHDR and MALDR lines (p < 0.001) are marked in red.
