title: Isoflurane, nitrous oxide and oxygen analgesic mixtures.
authors.forename: M E
authors.initials: ME
authors.lastname: Tunstall
authors.forename: J A
authors.initials: JA
authors.lastname: Ross
mesh_terms: D016362:Analgesia, Obstetrical / Q000379:methods*; D004338:Drug Combinations; D005260:Female; D006801:Humans; D007530:Isoflurane; D009609:Nitrous Oxide; D010100:Oxygen; D011247:Pregnancy
chemical_list: D004338:Drug Combinations; C001147:Entonox; D007530:Isoflurane; D009609:Nitrous Oxide; D010100:Oxygen