这项研究例证了新型特异性口服抗凝药可改善当前的抗血栓治疗方法，并有有着较为安全的出血特性。

This study exemplifies that novel, specific oral anticoagulants may improve the current antithrombotic strategies while having a safer bleeding profile.

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在中国，医生们由于担心抗凝治疗引起大出血的风险将会很高，而很少对上述患者应用抗凝药。美国应用抗凝药预防深静脉血栓的情况如何？

In China, Seldom to prescribe anticoagulant agents to these patients is often due to physicians' perceiving the risk of major bleeding in association with anticoagulant therapy as unacceptably high.

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