目的评价倍频532半导体激光器治疗增殖前期糖尿病视网膜病变的疗效。

Objective to evaluate the treatment effect of using the double frequency Laser 532 to treat the pathological changes of retina due to diabetes before proliferation.

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在血管前期，由于肿瘤的血管生成能力缺失或不足，肿瘤仅有几个立方毫米，由一个或少数几个癌变细胞分裂增殖形成一簇无血管的细胞团。

In the proangiogenesis, because of the insufficiency of the vessel, it is hard for the tumor to sustain the size of few cubic millimeter, which is formed by the cluster of tumor cells.

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在血管前期，由于肿瘤的血管生成能力缺失或不足，肿瘤仅有几个立方毫米，由一个或少数几个癌变细胞分裂增殖形成一簇无血管的细胞团。

In the proangiogenesis, because of the insufficiency of the vessel, it is hard for the tumor to sustain the size of few cubic millimeter, which is formed by the cluster of tumor cells.

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