即便患者回到医院，他们的再住院日也变短，病情也较轻。
Even when patients do return to the hospital, they tend to have shorter stays and less severe illness.
目的观察患者回到ICU后的抗凝血酶活性以及术后各种不良结果的联系。
AIM To investigate the association between antithrombin activity at admission to the ICU(ICU-antithrombin activity) and various outcome variables.
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