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近年来，许多研究结果表明，某些癌基因的表达产物可作为临床诊断或筛选肿瘤的早期指标[1]。癌基因的表达状况亦可为判断临床预后，估价病情提供理论依据。本文采用免疫组化方法研究癌基因产物p53及c．erbB．2在肝细胞癌（HCC）中的表达。同时检测HCC的增殖细胞核抗原（PC．NA
In recent years, many studies have shown that the expression products of certain oncogenes can be used as early indicators for clinical diagnosis or screening of tumors [1]. The expression of oncogene can also provide a theoretical basis for judging the clinical prognosis and evaluating the condition. This article uses immunohistochemistry to study the oncogene product p53 and c. erbB. 2 Expression in hepatocellular carcinoma (HCC). Simultaneous Detection of Proliferating Cell Nuclear Antigen of HCC (PC.NA