Cigarette smoking and pneumoconiosis: structuring the debate.
Blanc
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PD
Division of Occupational and Environmental Medicine, University of California, San Francisco 94117-0924.
Gamsu
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G
D006801:Humans; D007750:Labor Unions; D011009:Pneumoconiosis / Q000150:complications*; D012907:Smoking / Q000009:adverse effects*