title: A freeze-fracture and morphometric analysis of gap junctions of limb bud cells: initial studies on a possible mechanism for morphogenetic signalling during development.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D004475:Ectoderm / Q000648:ultrastructure; D005121:Extremities / Q000196:embryology*; D005614:Freeze Fracturing; D007365:Intercellular Junctions / Q000502:physiology / Q000648:ultrastructure*; D008648:Mesoderm / Q000648:ultrastructure; D009024:Morphogenesis