is tobacco deadly if ingested Near fatal intoxication by nicotine and propylene glycol injection: a case report of an e-liquid poisoning | BMC Pharmacology and Toxicology Tobacco Poisoning: Identifying It and

E-cigarettes less harmful than tobacco 2nd Dec 2015 E-cigarettes thought to be around 95% less harmful than tobacco estimates landmark review Expert independent review concludes that e-cigarettes have potential to help smokers quit

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Because the rules for these products and the manner in which the rules are enforced are ill-defined, consumers lack a clear understanding of product risks, and manufacturers lack a clear understanding of the premarket tobacco application (PMTA) process for bringing novel, reduced-risk products to the marketplace

If you don't like the smell of coffee, you may be out of luck on this one, although the tactic really does work