An Investigation on Pharmacological Effect of Xiaoshuan Zaizao Wan Screening of active fractions with antithrombotic effect from Caragana jubata A Prcliminary Pharmacological Study on Differently Processed Leech Pharmacodynamic test of active extract of Lumbricus Effect of total flavone in Sanguis Draconis on platelet aggregation,thrombus formation and myocardial ischemia Preparation and Analysis of Lyophilization Characterization of Human D-dimer Comparative study on effect of different extracts from carbonized Rubiae Radix et Rhizoma in acute blood stasis model of rats