Peripheral blood was counted at least twice a week.The coagulation and fibrinolysis were measured during the treatment.RESULTS: Twenty-five patients were treated with arsenous acid.

• 治疗过程中每周或至评价疗程时进行骨髓检查，每周至少2次血常规检查，并监测凝血纤溶指标和肝、肾功能等。