5Geerts WH,Heit JA,Clagett GP,et al.Prevention of venous thromboembolism[J].Chest,2001,119(suppl):132S-175S.
6Mismetti P,Laporte S,Darmon JY,et al.Meta-analysis of low molecular weight heparin in the prevention of venous thromboembolism in general surgery[J].Br J Surg,2001,88(7):913-930.
3Geerts WH, Heit JA, Clagett GP, et al. Prevention of venous thromboembolism[J].Chest,2001,119(suppl 1):132-175.
4Mismetti P, Laporte S, Darmon JY, et al. Meta-analysis of low molecularweight heparin in the prevention of venous thromboem- bolism in generalsurgery [ J ]. Br J Surg, 2001,88(7):913-930.
5The American College of chest physicians antithrombotic thera- py and prevention of thrombosis panel. Antithrombotic therapy and prevention of thrombosis [J ]. ACC Pguideline 2012 9th edi- tion. Chest, 2012,141(suppl 2): 326-350.
6JCS working group. Guidelines for perioperative cardiovascular evaluation and management for noncardiac surgery (JCS 2008) [J]. Circ J, 2011,75(4): 989-1009.
7Theask force for preoperative cardiac risk assessment and peri- operative cardiac management in non-cardiac surgery of the eu- ropean society of cardiology (ESC) and endorsed by the european society of anaesthesiology (ESA). Guidelines for preoperative cardiac risk assessment and perioperative cardiac management in non-cardiac surgery [J]. Eur Heart J, 2009, 30 (22): 2769-2812.