Exposure to secondhand smoke reduced

As the connection between second-hand smoke and coronary heart disease (CHD) became clearer and legislation was passed to reduce such passive smoking, exposures have been reduced. In an article published in the January 2009 issue of the American Journal of Preventive Medicine, researchers from the University of California, San Francisco, Partners Healthcare, Boston and Columbia University have recalibrated the CHD Policy Model to better predict future trends in CHD.

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