title: Ultrastructural features of ectodermal--mesenchymal relationships in the developing limb of Xenopus laevis.
mesh_terms: D000818:Animals; D003094:Collagen; D003238:Connective Tissue; D003239:Connective Tissue Cells; D004475:Ectoderm / Q000166:cytology*; D006614:Hindlimb / Q000166:cytology / Q000254:growth & development*; D007365:Intercellular Junctions; D007814:Larva / Q000254:growth & development; D008854:Microscopy, Electron; D009024:Morphogenesis; D014981:Xenopus / Q000254:growth & development*
chemical_list: D003094:Collagen