title: A short history of nitrous oxide anaesthesia.
mesh_terms: D000766:Anesthesia, Dental / Q000266:history*; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009609:Nitrous Oxide / Q000266:history*
chemical_list: D009609:Nitrous Oxide