title: Trace anesthetic gases: an overview.
mesh_terms: D000388:Air / Q000032:analysis; D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D000769:Anesthesia, Inhalation / Q000295:instrumentation / Q000662:veterinary; D000777:Anesthetics / Q000032:analysis*; D000818:Animals; D006221:Halothane / Q000032:analysis; D006801:Humans; D009609:Nitrous Oxide / Q000032:analysis; D009873:Operating Rooms
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D000777:Anesthetics; D009609:Nitrous Oxide; D006221:Halothane