Today in History: May 23, cigarette smoke linked to lung disease in non-smokers
- Posted on May 23, 2026
- By The Denver Post
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- 1 min read
Today in History: May 23, cigarette smoke linked to lung disease in non-smokers
Surgeon General C. Everett Koop issued a report saying there was “very solid” evidence linking cigarette smoke to lung disease in non-smokers.