目的研究正常口腔粘膜组织中P 5 3蛋白表达的增龄性变化，探讨上述变化在老年人口腔癌前损害发生过程中的作用。
Objective To investigate the age-related changes of P53 protein expression in oral mucous membrane and their effects on pathogenesis of the oral precancerous lesions in elderly people.
目的研究正常口腔粘膜组织中P 5 3蛋白表达的增龄性变化，探讨上述变化在老年人口腔癌前损害发生过程中的作用。
Objective To investigate the age-related changes of P53 protein expression in oral mucous membrane and their effects on pathogenesis of the oral precancerous lesions in elderly people.
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