Black lung disease killed workers
皇冠体育app Daily | Updated: 2009-03-28 08:08
Six of the 12 migrant workers from Yunnan province who died of unidentified illnesses after working in plants in Anhui province had contracted black lung disease, Yunnan's provincial government said on Friday. A total of 63 migrant workers fell ill after returning from Anhui between 2006 and 2008.
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