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我们采用免疫组化方法观察４２例早期胃癌中ｐ１６、ｐ５３蛋白和增殖细胞核抗原（ＰＣＮＡ）的表达，现将结果报道如下。一、材料与方法１．材料 选取我院１９８５～１９９５年间外科手术切除早期胃癌标本４２例。全部标本均经福马林固定，石蜡包埋。所有切片按全国胃癌协作
We used immunohistochemistry to observe the expression of p16, p53 protein and proliferating cell nuclear antigen (PCNA) in 42 cases of early gastric cancer. The results are reported below. First, materials and methods Materials 42 cases of early gastric cancer were surgically resected from 1985 to 1995 in our hospital. All specimens were fixed in formalin and embedded in paraffin. All sections are based on the national gastric cancer collaboration