title: Concentration of methoxyflurane for obstetric analgesia by self-administered intermittent inhalation.
mesh_terms: D000336:Aerosols; D000773:Anesthesia, Obstetrical; D036861:Delivery, Obstetric; D005260:Female; D006801:Humans; D008733:Methoxyflurane / Q000008:administration & dosage*; D011247:Pregnancy; D013223:Statistics as Topic
chemical_list: D000336:Aerosols; D008733:Methoxyflurane