Figure 2F. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(00)00507-4] Mech Dev 100: 119-22, Coffinier C; Tran U; Larrain J; De Robertis EM, Neuralin-1 is a novel Chordin-related molecule expressed in the mouse neural plate. Copyright 2001.