The story of inhalation anaesthesia.
D000766:Anesthesia, Dental / Q000266:history; D000769:Anesthesia, Inhalation / Q000266:history*; D000776:Anesthesiology / Q000266:history; D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049690:History, Ancient; D049691:History, Medieval; D049711:History, Modern 1601-; D009609:Nitrous Oxide
D009609:Nitrous Oxide