A trial of a new synthetic analgesic.
D000698:Analgesia; D000700:Analgesics; D000758:Anesthesia; D000760:Anesthesia and Analgesia; D008691:Methadone / Q000031:analogs & derivatives; D009609:Nitrous Oxide; D059408:Pain Management
D000700:Analgesics; D009609:Nitrous Oxide; D008691:Methadone
METHADON/derivatives; NITROUS OXIDE/anesthesia and analgesia