title: A simplified approach to the subcutaneous placement of epidural catheters for long-term administration of morphine.
mesh_terms: D002408:Catheters, Indwelling; D006801:Humans; D007263:Infusions, Parenteral / Q000379:methods; D009020:Morphine / Q000008:administration & dosage* / Q000627:therapeutic use; D009369:Neoplasms / Q000503:physiopathology*; D010146:Pain / Q000188:drug therapy*
chemical_list: D009020:Morphine