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. 2021 Mar 31;226(5):1497–1510. doi: 10.1007/s00429-021-02264-1

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — Localization of NOS-immunoreactive neurons at two different positions in the EPN. Pseudocolor images in (a, b) consist of double immunolabeling for NOS (green) and SP (blue), of which NOS immunoreactivity is shown in (c, d). NOS-positive neurons in the ventromedial part of the rostral and middle EPN (1.16 and 1.32 mm caudal to bregma) are shown by arrowheads. M = medial, D = dorsal. Scale bar = 100 µm.