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Fig. 1. Distribution of melatonin receptors (MT) and tryptophan hydroxylase 2 (TPH2)-containing serotonergic neurons in the dorsal raphe nucleus (DRN). Fluorescent images of melatonin receptors (including both MT1 and MT2, red) and TPH2-containing neurons (TPH, green). The bottom right images was taken from the rat brain atlas. The red square indicates the location of DRN. Scale bars: 200 μm.
Korean J Physiol Pharmacol 2021;25:449-457
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