title: Epidural opiates and urinary retention: new models provide new insights.
mesh_terms: D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000009:adverse effects*; D000818:Animals; D004195:Disease Models, Animal; D006801:Humans; D007278:Injections, Spinal; D051381:Rats; D014555:Urination Disorders / Q000139:chemically induced*
chemical_list: D000701:Analgesics, Opioid