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Background:The combustion of bituminous coal resulted in the high incidence of lung cancer of peasants in Xuanwei and Fuyuan counties of Yunnan Province because of particulate matter (PM) absorbing a great deal of heavy metal elements and organic matter s
Background: The combustion of bituminous coal resulted in the high incidence of lung cancer of peasants in Xuanwei and Fuyuan counties of Yunnan Province because of particulate matter (PM) absorbing a great deal of heavy metal elements and organic matter s