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我们采用放射免疫、免疫组化及放射性配体结合试验对７０例大肠癌进行了血清胃泌素（ＳＧ），肿瘤组织胃素（ＧＡＳ）表达及胃泌素受体（ＧＲ）的检测，并对其临床意义进行了分析。材料及方法一、对象大肠癌７０例，男４５例，女２５例，年龄１７～７５岁，平均４８±２３．６
We used radioimmunoassay, immunohistochemistry, and radioligand binding assays to detect serum gastrin (SG), tumor tissue gastrin (GAS) expression, and gastrin receptor (GR) in 70 cases of colorectal cancer. Its clinical significance was analyzed. Materials and Methods 1. 70 cases of colorectal cancer, 45 males and 25 females, aged 17 to 75 years, average 48±23.6