title: Sites for experimental production of tracheal and/or oesophageal malformations in 4-day-old chick embryos.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D004947:Esophagus / Q000002:abnormalities*; D005549:Foreign-Body Reaction; D012834:Silver; D014132:Trachea / Q000002:abnormalities*; D014338:Truncus Arteriosus / Q000196:embryology
chemical_list: D012834:Silver