title: Apical ectodermal ridge in retrospect.
authors.affiliation: Marine Biological Laboratory, Woods Hole, Massachusetts 02540, USA. jsaunder@mbl.edu
authors.forename: J W
authors.initials: JW
authors.lastname: Saunders
mesh_terms: D000818:Animals; D002642:Chick Embryo; D004475:Ectoderm / Q000502:physiology; D004626:Embryology / Q000266:history; D047108:Embryonic Development; D004627:Embryonic Induction; D049673:History, 20th Century; D018878:Limb Buds / Q000196:embryology*; D014921:Wings, Animal / Q000196:embryology*