Secondhand-smoke story goes up in flames.
Gray
C
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D002170:Canada; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology* / Q000517:prevention & control; D008297:Male; D009524:Newspapers as Topic / Q000592:standards*; D012307:Risk Factors; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*; D014944:World Health Organization
D014028:Tobacco Smoke Pollution