The evolution of anaesthesia. 1. Ether in medicine before anaesthesia.
D000758:Anesthesia; D000776:Anesthesiology; D004986:Ether / Q000628:therapy*; D004987:Ethers; D013812:Therapeutics / Q000266:history*
D004987:Ethers; D004986:Ether
ETHER, ETHYL/therapy; THERAPEUTICS/history