5Geller E, Chmbasik J, Graf R. A randomized double- blind comparison of epidual sufentanil versus intrave- nous sufentanil or epidural fentanyl analgesia after ma- jor abdominal surgery[J]. Anesth Analg, 1993, 76: 1243-1247.
6Gorur S, Inanogl.u K, Akkurt B C, et al. Periprostatic nerve blockage reduces postoperative analgesic con- sumption and pain scores of patients undergoing tran- surethral prostate resection[J]. Urol Int, 2007,79(4) 297-301.
