5Warfield CA, Kahn CH. Acute pain management: programs in U. S. hospitals and experiences and attitudes among U. S. adults. Anesthesiology, 1995,83 : 1090.
6Rawal N, Berggren L. Organization of acute pain services : a low- cost model. Pain, 1994,57 : 117-123.
7Bardiau FM,Taviaux NF, Albert A, et al. An intervention study to en-hance postoperative pain management. Anesth Analg,2003,96: 179-185.