Fig1A(9.5) Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S0925-4773(02)00242-3] Mech Dev 118(1-2): 187-190, Watanabe D; Suetake I; Tada T; Tajima S, Stage- and cell-specific expression of Dnmt3a and Dnmt3b during embryogenesis. Copyright 2002. [PMID:12351185]