Figure 1D. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(00)00490-1] Mech Dev 100: 79-81, Ball ST; Williamson CM; Hayes C; Hacker T; Peters J, The spatial and temporal expression pattern of Nesp and its antisense Nespas, in mid-gestation mouse embryos. Copyright 2001.