Studies on nitrous oxide, meperidine and levallorphan with unipolar electroencephalography.
D000698:Analgesia; D000758:Anesthesia; D000760:Anesthesia and Analgesia; D004569:Electroencephalography; D007977:Levallorphan; D008614:Meperidine; D009609:Nitrous Oxide; D059408:Pain Management
D007977:Levallorphan; D008614:Meperidine; D009609:Nitrous Oxide
ELECTROENCEPHALOGRAPHY; NITROUS OXIDE/anesthesia and analgesia