Figure 3D. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(98)00205-6] Mech Dev 80: 185-9, Nakashima M; Toyono T; Akamine A; Joyner A, Expression of growth/differentiation factor 11, a new member of the BMP/TGFbeta superfamily during mouse embryogenesis. Copyright 1999.