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Diagram summary depicting the composition of clusters in the VZ. Clusters are organized around radial glial (RG) fibers and contain cells in G1, S, and G2. Shaded cells are not members of VZ clusters; these include cells in M phase (arrows), postmitotic neurons (TUJ1), migrating neurons (Mig), SVZ cells, and some cells in S and G1phases of the cell cycle.
