2[1]Walsh JJ,Bonnar J,Wright FW.A study of pulmonary embolism and deep leg vein thrombosis after major gynecologic surgery using labelled fibrinogen,phlebography and lung scanning.J Obstet Gynecol Br Commonw,1974,81(4):311
4[3]Burgquist T.Review of clinical trials of low molecular weight heparin.Eur J Surg,1992,158(2):67
5[6]Clarke-Pearson DL,Synan IS,Dodge R,et al.A randomized trial of low-dose heparin and intermittent pneumatic calf compression for the prevention of deep venous thrombosis after gynecologic oncology surgery.Am J Obstet Gynecol,1993,168(4):1146
6[1]Macintyre PE . Safety and efficacy of patient control analgesia. Br J Anaesth , 2001, 87 (1) :36-46 .
7[2]Patrica Lanvand's Homme, Marc De Kock. Practical guidelines on the postoperative use of patient-controlled analgesia in the elderly. Drugs Againg ,1998,13 (1): 9-16.
8[3]Margo,Mclaffery and Betty R. Understanding opioids addiction . Nursing, 1994, 24 (8) :58.
9[4]Gustafson Y, Berggren D, Brannstorm B, et al. Acute confusional states in elderly patients treated for femoral neck fracture. J Am Geriatr Soc ,1988,36: 525-530.
10[5]Myster T, Jenson FG, et al. The effect of posture on late postoperative hypoxaemia. Anaesthesia, 1996, 51: 225.