Gamma-glutamyltranspeptidase (GGT) and alpha fetoprotein(AFP) producing cells in preneoplastic lesions in F_(344) rats were studied by means of double staining of GGT anp AFP.

• 应用丫-谷氨酰转肽酶-甲胎蛋白(GGT-AFP)双染色法对F_(344)大鼠癌前期病变组织中GGT；AFP的产生细胞进行研究.