This priceless gift to humanity.
Aronson
S M
SM
D000769:Anesthesia, Inhalation / Q000266:history*; D004739:England; D004986:Ether / Q000266:history; D005602:France; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D009609:Nitrous Oxide / Q000266:history; D014481:United States
D004986:Ether; D009609:Nitrous Oxide