Fig 1N Copyright: Reprinted with permission from Elsevier from [doi:10.1016/0925-4773(96)00542-4] Mech Dev 57: 103-112, Subramanian SV, Nadal-Ginard B., Early expression of the different isoforms of the myocyte enhancer factor-2 (MEF2) protein in myogenic as well as non-myogenic cell lineages during mouse embryogenesis. Copyright 1996