title: [History of nitrous oxide anesthesia].
mesh_terms: D000766:Anesthesia, Dental / Q000266:history*; D000769:Anesthesia, Inhalation / Q000266:history*; D049672:History, 19th Century; D007564:Japan; D009609:Nitrous Oxide / Q000266:history*
chemical_list: D009609:Nitrous Oxide