Historical vignettes. Dr. Crawford Williamson Long (1815-1878).
D000769:Anesthesia, Inhalation / Q000266:history*; D005019:Ethyl Ethers; D013502:General Surgery / Q000266:history; D049672:History, 19th Century; D006801:Humans; D014481:United States
D005019:Ethyl Ethers