2Horlocker TT,Wedel DJ,Benzon H,et al.Regional anesthesia in the anticoagulated patient:defining the risks (the second ASRA Consensus Conference on Neuraxial Anesthesia and Anticoagulation)[J].Reg Anesth Pain Med,2003,28(3):172~97
3Geerts WH,Pineo GF,Heir JA,et al.Prevention of venous thromboembolism:the Seventh ACCP Confermce on Antithrombotic and Thrombolytic Therapy[J].Chest,2004,126(3 Suppl):338S~400S
7Kim DY, Kobayashi L, Barmparas G, et al. Venous thromboembolism in the elderly : the result of comorbid conditions or a consequence of injury? [ J]. J Trauma Acute Care Surg,2012,72 (5) : 1286-1291.
8Clagett GP,Anderson FA Jr, Levine MN, et al. Prevention of venous thromboembolism [ J ]. Chest, 1992,102 (4 Supp 1 ) :391 s - 407s.