Anesthesia in otologic surgery.
D000758:Anesthesia; D000768:Anesthesia, General; D000769:Anesthesia, Inhalation; D000771:Anesthesia, Intravenous; D000772:Anesthesia, Local; D004427:Ear Diseases / Q000601:surgery; D006801:Humans; D007649:Ketamine; D009609:Nitrous Oxide
D007649:Ketamine; D009609:Nitrous Oxide