Figure 3C. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(99)00138-0] Mech Dev 87: 45-56, Monaghan AP; Kioschis P; Wu W; Zuniga A; Bock D; Poustka A; Delius H; Niehrs C, Dickkopf genes are co-ordinately expressed in mesodermal lineages. Copyright 1999.