title: Is nitrous oxide next.
authors.forename: M B
authors.initials: MB
authors.lastname: Smith
authors.forename: N W
authors.initials: NW
authors.lastname: Penfold
mesh_terms: D000769:Anesthesia, Inhalation / Q000009:adverse effects*; D002245:Carbon Dioxide / Q000009:adverse effects*; D006801:Humans; D009609:Nitrous Oxide / Q000009:adverse effects*; D012449:Safety
chemical_list: D002245:Carbon Dioxide; D009609:Nitrous Oxide