1[1]Varrassi GT,Marinangeli F,Agro F,et al.A double- evaluation of propacetamol versus ketorolac in combination with patient- controlled analge sia morphine:analgesia effcacy and tolerability after gynecologic surgery.Anesth Analg,1999,83:611~616.
2[2]Wilder Smith OH,Tassonyi E,Senly c,et al.Surgical pain is followed not only by spinal sensitization but supraspinal antinociception.Br J Anaesth, 1996,77:566~567.