Risk identification and prediction of coal workers' pneumoconiosis in Kailuan Colliery Group in China: a historical cohort study.

PLoS One · 2013 · PMC3871577 · PMID 24376519

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a decreasing trendno p-value reported

Discussion The incidence of pneumoconiosis has been a decreasing trend, but it is still a most serious occupational disease worldwide.

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