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High-power view of TH and DAT co-localization in ventral tier neurons of the fetal substantia nigra.A, Fluorescent photomicrograph illustrating IR-TH neurons in the ventral tier of the SN. B, Dark-field photomicrograph of the same section showing silver grains, indicative of DAT mRNA, surrounding cell nuclei (blue nuclei). Scale bar, 50 μm.
