[Analysis of incidence characteristics and trend of pneumoconiosis in Ningbo City from 1967 to 2019].
Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases（2022）
关键词
Distribution,Pneumoconiosis,Silicosis,Trend
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