title: Ralph M. Waters Memorial Lecture.
mesh_terms: D000388:Air; D000758:Anesthesia / Q000009:adverse effects / Q000266:history* / Q000401:mortality; D000769:Anesthesia, Inhalation; D000771:Anesthesia, Intravenous; D000776:Anesthesiology / Q000193:education; D002763:Cholecystectomy; D005019:Ethyl Ethers / Q000008:administration & dosage; D049673:History, 20th Century; D006801:Humans; D007442:Intubation, Intratracheal; D010100:Oxygen / Q000008:administration & dosage / Q000097:blood; D013874:Thiopental / Q000008:administration & dosage; D006113:United Kingdom; D014922:Wisconsin
chemical_list: D005019:Ethyl Ethers; D013874:Thiopental; D010100:Oxygen