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Letters
January 16, 2002

Effects of Passive Smoking on Coronary Circulation

Author Affiliations
 

Stephen J.LurieMD, PhD, Senior EditorIndividualAuthor

JAMA. 2002;287(3):316-317. doi:10.1001/jama.287.3.313

To the Editor: Dr Otsuka and colleagues1 showed that exposure to secondhand smoke with carbon monoxide (SSCO) levels of 6.02 ppm for 30 minutes induces endothelial dysfunction of the coronary circulation in nonsmokers. This exposure level can be related to actual secondhand smoke exposures by an equation relating SSCO to secondhand smoke respirable particulate matter (SSRSP)2:

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