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Immunohistochemistry with different glial markers

Olig2 (oligodendrocyte progenitors, red), S100β (astrocytes, green), and myelin binding protein (MBP, gray). Nuclei labeled with Hoechst (blue). (Source: Figueres-Oñate M, Gutiérrez Y, López-Mascaraque L. Unraveling Cajal's view of the olfactory system. Front Neuroanat 2014;8:55. Creative Commons Attribution [CC BY] license, creativecommons.org/licenses/by/4.0.)