title: The reactivity of tegumentary ectodermal epithelium in 3- and 4-day incubation chick embryos.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D003560:Cysts / Q000196:embryology*; D004475:Ectoderm / Q000502:physiology*; D004848:Epithelium; D008679:Metaplasia; D012871:Skin Diseases / Q000196:embryology*