title: Postoperative analgesia with CI-572.
mesh_terms: D000700:Analgesics / Q000008:administration & dosage* / Q000009:adverse effects; D000704:Analysis of Variance; D002986:Clinical Trials as Topic; D006801:Humans; D008614:Meperidine / Q000008:administration & dosage; D010636:Phenols / Q000008:administration & dosage* / Q000009:adverse effects; D010919:Placebos; D011182:Postoperative Care; D013514:Surgical Procedures, Operative
chemical_list: D000700:Analgesics; D010636:Phenols; D010919:Placebos; D008614:Meperidine