title: Vertebrate development. Limbs: a pattern emerges.
authors.forename: J
authors.initials: J
authors.lastname: Lewis
authors.forename: P
authors.initials: P
authors.lastname: Martin
mesh_terms: D000818:Animals; D005121:Extremities / Q000196:embryology*; D005801:Genes, Homeobox; D009024:Morphogenesis; D014212:Tretinoin
chemical_list: D014212:Tretinoin