Warfarin is a popular prescribed oral anti-coagulation,which is used to prevent and treat deep venous thrombosis,pulmonary thrombosis,chronic atrial fibrillation,cerebral arterial thrombosis and after cardiac valve replacement.Since the therapeutic index is small and the individual difference is great,bleeding would happen if overcoagulation,and thrombosis would happen if under-coagulation.Researches show that genetic factors play an important role in the individual difference of warfarin,and other factors ...