Robert Liston's letter to Dr. Francis Boott: its reappearance after 135 years.
D000776:Anesthesiology / Q000266:history*; D004739:England; D004986:Ether / Q000266:history*; D005019:Ethyl Ethers / Q000266:history*; D049672:History, 19th Century; D014956:Writing
D005019:Ethyl Ethers; D004986:Ether