Objective To study the value of methylene blue staining in diagnosis of precancerous lesions and early gastric cancer.
目的研究内镜下美蓝染色对胃癌前病变和早期胃癌的诊断价值。
Objectives to study the changes of precancerous lesions of stomach and their relationship with gastric cancer.
目的探讨胃癌前病变的转归以及与胃癌的关系。
Objectives to study the changes of precancerous lesions of stomach and their relationship with gastric cancer.
目的探讨胃癌前病变的转归以及与胃癌的关系。
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