Fig6A. from [doi:10.1016/j.molbrainres.2003.12.014] Brain Res Mol Brain Res 122(2): 133-150, Garcia-Frigola C; Burgaya F; Calbet M; Lopez-Domenech G; de Lecea L; Soriano E, A collection of cDNAs enriched in upper cortical layers of the embryonic mouse brain. Copyright 2004