6Cheriex EC,Sreeram N,Eussen YF,et al.Cross sectional Doppler echocardiography as the initial technique for the diagnosis of acute pulmonary embolism[].British Heart Journal.1994
7Come PC,Kim D,Parker JA,et al.Early reversal of right ventricular dysfunction in patients with acute pulmonary embolism after treatment with intravenous tissue plasminogen activator[].Journal of the American College of Cardiology.1987
8Goldsmith JC,Kasper CK,Blatt PM,et al.Coagulation factor IX:successful surgical experience with a purified factor IX concentrate[].American Journal of Hematology.1992