Study implicates second-hand smoke.
Stone
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D000818:Animals; D001012:Aorta, Abdominal; D001018:Aortic Diseases / Q000209:etiology*; D001161:Arteriosclerosis / Q000209:etiology*; D002645:Chickens; D006801:Humans; D008297:Male; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
D014028:Tobacco Smoke Pollution