Methods:Mutations of multiple genes from 106 patients with SCC were analyzed by two multiplex PCR-SSCP systems, PCR-RFLP, and DNA sequencing.
方法：对10 6例散发性大肠癌患者进行多基因突变和肠道内环境中有关指标（以粪便为标本）的测定，并进行流行病学的病例-病例研究分析。
Methods:Mutations of multiple genes from 106 patients with SCC were analyzed by two multiplex PCR-SSCP systems, PCR-RFLP, and DNA sequencing.
方法：对10 6例散发性大肠癌患者进行多基因突变和肠道内环境中有关指标（以粪便为标本）的测定，并进行流行病学的病例-病例研究分析。
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