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Overview of the neural circuitry for itch-processing in the central nervous system in mice. CeA, central amygdala; GRPR, gastrin-releasing peptide receptor; NK1, neurokinin 1; PAG, periaqueductal gray; PBN, parabrachial nucleus; RVM, rostral ventromedial medulla; Tac1, tachykinin 1; VGLUT2, vesicular glutamate transporter 2.
