General anesthesia and nitrous oxide sedation: history, training requirements, and Oklahoma safety record.
D000571:American Dental Association; D000766:Anesthesia, Dental / Q000592:standards* / Q000706:statistics & numerical data; D000768:Anesthesia, General / Q000592:standards*; D009609:Nitrous Oxide; D009825:Oklahoma; D014481:United States
D009609:Nitrous Oxide