title: Long-term opioid treatment: the role of pain facilitatory system.
authors.forename: Chih-Shung
authors.initials: CS
authors.lastname: Wong
mesh_terms: D015746:Abdominal Pain / Q000188:drug therapy*; D000701:Analgesics, Opioid / Q000627:therapeutic use*; D001528:Behcet Syndrome / Q000188:drug therapy*; D004361:Drug Tolerance; D018691:Excitatory Amino Acid Antagonists / Q000627:therapeutic use; D018846:Excitatory Amino Acids / Q000378:metabolism; D006801:Humans; D010148:Intractable Pain / Q000188:drug therapy*
chemical_list: D000701:Analgesics, Opioid; D018691:Excitatory Amino Acid Antagonists; D018846:Excitatory Amino Acids