title: Comparison of tramadol with morphine for post-operative pain following abdominal surgery.
authors.forename: A
authors.initials: A
authors.lastname: Stubhaug
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D016001:Confidence Intervals; D006801:Humans; D007275:Injections, Intravenous; D009020:Morphine / Q000008:administration & dosage / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D010149:Postoperative Pain / Q000517:prevention & control*; D013810:Therapeutic Equivalency; D014147:Tramadol / Q000008:administration & dosage / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*
chemical_list: D000701:Analgesics, Opioid; D014147:Tramadol; D009020:Morphine