Figure 2. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(00)00566-9] Mech Dev 2001, 101: 217-20, Lillevali K; Kulla A; Ord T, "Comparative expression analysis of the genes encoding polypyrimidine tract binding protein (PTB) and its neural homologue (brPTB) in prenatal and postnatal mouse brain." Copyright 2001. [PMID:11231079]