The rates of recurrence and metastasis were evaluated by life table analysis.
采用寿命表分析法比较术后复发转移率。
Methods: Pneumoconiosis incidence in workers departed from dust of gold mine was studied by life-table analysis and progressively regression analysis method.
方法：应用寿命表法和逐步回归分析方法，对某金矿离尘矿工尘肺发病情况进行研究。
Methods: Pneumoconiosis incidence in workers departed from dust of gold mine was studied by life-table analysis and progressively regression analysis method.
方法：应用寿命表法和逐步回归分析方法，对某金矿离尘矿工尘肺发病情况进行研究。
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