title: Epigenetic mechanisms in the early amphibian embryo: cell differentiation and morphogenetic elements.
mesh_terms: D000663:Amphibians / Q000196:embryology*; D000818:Animals; D002448:Cell Adhesion; D002454:Cell Differentiation; D003094:Collagen / Q000502:physiology; D005110:Extracellular Space / Q000502:physiology; D009024:Morphogenesis; D011134:Polysaccharides / Q000502:physiology; D011509:Proteoglycans / Q000502:physiology
chemical_list: D011134:Polysaccharides; D011509:Proteoglycans; D003094:Collagen