title: Analgesia and oral opioid consumption: strengths and shortcomings of methods.
authors: Department of Neurology University of Wisconsin Madison, WI 53792 USA Department of Psychiatry University of Wisconsin Madison, WI 53792 USA.
authors: Misha-Miroslav
authors: MM
authors: Backonja
authors: Blake A
authors: BA
authors: Gosnell
mesh_terms: D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000627:therapeutic use*; D000818:Animals; D005283:Fentanyl / Q000008:administration & dosage / Q000627:therapeutic use; D010146:Pain / Q000188:drug therapy* / Q000523:psychology; D051381:Rats; D012646:Self Administration
chemical_list: D000701:Analgesics, Opioid; D005283:Fentanyl