title: Early descriptions of the Arnold-Chiari malformation. The contribution of John Cleland.
mesh_terms: D000818:Animals; D001139:Arnold-Chiari Malformation / Q000266:history*; D001933:Brain Stem / Q000002:abnormalities; D002531:Cerebellum / Q000002:abnormalities; D002642:Chick Embryo; D049672:History, 19th Century; D006801:Humans; D007231:Infant, Newborn; D008526:Medulla Oblongata / Q000002:abnormalities; D006113:United Kingdom