Analgesia in electromyography.
D000698:Analgesia; D004576:Electromyography; D006801:Humans; D008614:Meperidine; D008691:Methadone; D010146:Pain; D059408:Pain Management; D011398:Promethazine
D008614:Meperidine; D011398:Promethazine; D008691:Methadone
ANALGESIA; ELECTROMYOGRAPHY; MEPERIDINE; METHADONE; PROMETHAZINE