Methods:The chemical physics and immunological characters of the STF were examined and identified in accordance with Chinese pharmacopeia and using MTT-Leukocyte adherence inhibition assay (MTT-LAI) .

• 方法：按中国药典及白细胞粘附抑制试验(MTT法)对STF的理化性质和免疫学性质进行了检测和鉴定。