Results: The positive rate of staff contacting with sheep was 10.8%, and suspected patients 42.8%.

结果：羊只接触人员的阳性率为10.8%，疑似患者的阳性率为42.8%。

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Methods: Contacting relation degree of Grey Model Theory was used in analyzing ten reasons of effecting cesarean section rate.

方法：采用灰色系统理论关联度分析法，对影响剖宫产率的十种因素进行分析。

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Conclusion: the high happen-rate of the inducing labor of VDT work women is relevant to contacting VDT within early 3 months of the pregnancy periods.

治疗性引产率以妊娠3个月内接触组最高。结论：VDT作业妇女治疗性引产率增高可能与妊娠早期接触有关。

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