title: Improving preoxygenation.
authors.forename: A F
authors.initials: AF
authors.lastname: Smith
mesh_terms: D000280:Administration, Inhalation; D000768:Anesthesia, General; D004867:Equipment Design; D006801:Humans; D008397:Masks; D010100:Oxygen / Q000008:administration & dosage*
chemical_list: D010100:Oxygen