Materials and Methods:The datum of 20 patients proved by Occupation Disease Prevention and Cure Hospital were retrospectively analyzed.
材料与方法回顾性分析20例经职业病防治所确诊为矽肺的X线资料。
There's contradiction between them and the work of occupation disease prevention, it makes the healthy bodies of employments cans not get the valid protection. 4 .
对开展职业病防治工作存在明显的抵触，使就业者身体健康得不到有效保护。
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