
Respiratory Disability in Coal Miners
Michael Jacobsen, PhD
Institute of Occupational Medicine Edinburgh
JAMA. 1981;246(14):1546.
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To the Editor.—
In his letter (1980; 244:2158) W. K. C. Morgan, MD, quotes from an editorial1 that claimed that "Jacobsen has shown that smoking is the main cause of symptoms and disability in miners without massive lesions." I have explained elsewhere2 why I disagree with that statement.
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