阳性细胞系DNA模板与反应增生性淋巴组织DNA按不同比例混合后扩增，检测降落式PCR的灵敏度。
The positive control cell line DNA was mixed in different proportions with the DNA extracted from reactive lymphoid tissue to test the sensitivity of the touch-down PCR.
统计分析口腔癌NOS表达水平与淋巴转移、病理分级、临床分期的关系；分析口腔癌NOS表达水平与口腔癌组织微血管密度、VEGF表达水平之间的夫系。
Relationships of NOS expression with metastasis, pathological type and TNM stages were analyzed in OSCC, and so were relationship of NOS expression with VEGF expression and MVD.
统计分析口腔癌NOS表达水平与淋巴转移、病理分级、临床分期的关系；分析口腔癌NOS表达水平与口腔癌组织微血管密度、VEGF表达水平之间的夫系。
Relationships of NOS expression with metastasis, pathological type and TNM stages were analyzed in OSCC, and so were relationship of NOS expression with VEGF expression and MVD.
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