Figure 4A. Copyright: Reprinted with permission from the Society for Neuroscience from J Neurosci 23: 10613-21, Grillet N; Dubreuil V; Dufour HD; Brunet JF, "Dynamic expression of RGS4 in the developing nervous system and regulation by the neural type-specific transcription factor Phox2b." Copyright 2003. [PMID:14627646]