Figure 7E. Copyright: This image is from Chan DC; Wynshaw-Boris A; Leder P, "Formin isoforms are differentially expressed in the mouse embryo and are required for normal expression of fgf-4 and shh in the limb bud." Development 1995; 121): 3151-62 and is displayed with the permission of The Company of Biologist Limited who owns the Copyright. [PMID:7588050]