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. 2020 Sep 30;12:1759091420962695. doi: 10.1177/1759091420962695

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© The Author(s) 2020

Creative Commons CC BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Substantia Nigra. (A) Photomicrographs of a transverse section of midbrain, at the level of inferior colliculus. The circled area, shown at great magnification in (B), indicates the different portions of the Substantia Nigra. Klüver-Barrera stain. Magnification: (A) 0.5×; (B) 10×.

aS = aqueduct of Sylvius; cp = cerebral peduncle; ml = medial lemniscus; mlf = medial longitudinal fasciculus; on = oculomotor nerve; ic = inferior colliculus; scpd = superior cerebellar peduncle decussation; sl = spinal lemniscus; SNpc = substantia nigra pars compacta; SNpr =substantia nigra pars reticulata; α = subnucleus α of the pars compacta; β = subnucleus β of the pars compacta.