is smoking tobacco from a pipe better than cigarettes Cigars vs Pipes: Which are Better? Why Pipe Smoking Is Still
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For example, it has a compound known as propylene glycol which can cause respiratory irritation
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Also, DNA methylation changes linked to carcinogenesis have been demonstrated 11-13

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Nicotine: carcinogenicity and effects on response to cancer treatment - a review

Retrieved June 13, 2017
