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Figure 3: Localization of the CA1 region within the hippocampus for analysis of L-type channel expression. The CA1 region was localized using a low-magnification image of DAPI-stained nuclei (blue) shown on the left. The stratum oriens, stratum radiatum, and dentate gyrus are labeled in this low magnification image and the white scale bar represents 100 μm. The panel on the right illustrates the high magnification image utilized for the analysis of CaV1.2 and CaV1.3 channel density with the stratum radiatum and the pyramidal cell layer labeled.