title: [Application and utilization of premixed gases (N2O 50%, O2 50%) in England].
mesh_terms: D000769:Anesthesia, Inhalation / Q000379:methods*; D000773:Anesthesia, Obstetrical; D002648:Child; D004632:Emergency Medical Services; D004739:England; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms; D009609:Nitrous Oxide / Q000008:administration & dosage; D010100:Oxygen / Q000008:administration & dosage; D010166:Palliative Care; D011247:Pregnancy; D012646:Self Administration
chemical_list: D009609:Nitrous Oxide; D010100:Oxygen