Figure 1A. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/j.modgep.2004.10.007] Gene Expr Patterns 5: 317-22, Daniel D; Rossel M; Seki T; Konig N, Stromal cell-derived factor-1 (SDF-1) expression in embryonic mouse cerebral cortex starts in the intermediate zone close to the pallial-subpallial boundary and extends progressively towards the cortical hem. Copyright 2005.