title: Clouds of unknowing: presidential address to the Ulster Medical Society, Thursday 9th October 2008.
authors.affiliation: Department of Surgery, Mulhouse Building Royal Victoria Hospital, Grosvenor Road, Belfast, BT12 6BJ, United Kingdom. h.fee@qub.ac.uk
authors.forename: Howard
authors.initials: H
authors.lastname: Fee
mesh_terms: D000758:Anesthesia / Q000266:history*; D000776:Anesthesiology / Q000266:history*; D018685:Anesthetics, Inhalation / Q000266:history; D004986:Ether / Q000266:history; D005060:Europe; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D014481:United States
chemical_list: D018685:Anesthetics, Inhalation; D004986:Ether