title: Growth and the origin of additional structures in reduplicated chick wings.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002455:Cell Division; D002642:Chick Embryo; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014921:Wings, Animal / Q000002:abnormalities* / Q000196:embryology
chemical_list: D014316:Tritium; D013936:Thymidine