4[2]British Thoracic Society Standards of Care Committee Pulmonary Embolism Guideline Development Group.British thoraxic society guidelines for the management of suspected acute pulmonary embolism[J].Thorax,2003,58:470-483.
5[3]Greerts WH,Pineo GF,Heit JA,et al.Prevention of venous thromboemboism:the seventh ACCP conference on antithrombotic and thrombolytic therapy[J].Chest,2004,126(3 suppl):338-400.