title: Use of intrathecally administered morphine in the treatment of postoperative pain after lumbar spinal surgery: a prospective, double-blind, placebo-controlled study.
authors.forename: G L
authors.initials: GL
authors.lastname: Bohmfalk
authors.forename: F L
authors.initials: FL
authors.lastname: Contreras
mesh_terms: D015360:Analgesia, Epidural; D004311:Double-Blind Method; D006801:Humans; D007278:Injections, Spinal; D008159:Lumbar Vertebrae / Q000601:surgery*; D009020:Morphine / Q000008:administration & dosage*; D010149:Postoperative Pain / Q000188:drug therapy*; D011446:Prospective Studies
chemical_list: D009020:Morphine