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BACKGROUND Prior to 1970, coal mining technology and prevention measures in China were poor. Mechanized coal mining equipment and advanced protection measures were continuously installed in the mines after 1970. All these improvements may have resulted in a change in the incidence of coal workers' pneumoconiosis (CWP). Therefore, it is important to identify(More)
We aimed to estimate the economic losses currently caused by coal workers' pneumoconiosis (CWP) and, on the basis of these measurements, confirm the economic benefit of preventive measures. Our cohort study included 1,847 patients with CWP and 43,742 coal workers without CWP who were registered in the employment records of the Datong Coal Mine Group. We(More)
Applying case-teaching is an effective measure in course teaching of preventive medicine specialty. To improve the effect of class teaching, this paper discusses the methods and forms in course teaching of preventive medicine specialty. First, the active and pragmatic case teaching materials were wrote and edited carefully on characteristic of each(More)
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