title: The centenary of nitrous oxide anaesthesia in England.
mesh_terms: D000766:Anesthesia, Dental / Q000266:history* / Q000295:instrumentation; D004739:England; D049672:History, 19th Century; D009609:Nitrous Oxide / Q000138:chemical synthesis / Q000266:history*
chemical_list: D009609:Nitrous Oxide