title: Letter: The economics of inhalation anaesthesia.
mesh_terms: D000769:Anesthesia, Inhalation; D003365:Costs and Cost Analysis; D004470:Economics, Medical; D005019:Ethyl Ethers; D006221:Halothane; D006801:Humans; D010100:Oxygen; D013636:Tanzania; D015030:Zimbabwe
chemical_list: D005019:Ethyl Ethers; D010100:Oxygen; D006221:Halothane