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Case Reports Regional Anesthesia for a Parturient with Venous Sinus Thrombosis and Placental Abruption Undergoing Fractional Heparin Therapy. 一個具有靜脈竇血栓和部分肝素治療的胎盤剝離臨產(chǎn)婦的區(qū)域麻醉。