A 1998 report of the SCOTH concluded that passive smoking was a cause of lung most cancers, coronary heart disease, and other health problems. The number of smokers throughout the home, the variety of packs smoked within the home per day, and the period of time that the dog spent within the house had no effect on the dog’s threat for lung cancer. Some (similar to British American Tobacco and Philip Morris ) acknowledge the medical consensus that secondhand smoke carries health risks, whereas others proceed to say that the evidence is inconclusive.
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