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about e cigarettes Electronic Cigarettes: Know the Research, Know the Risks Common e‐cigarette (e‐cig) products and
Description
Non-combusted tobacco use was lower at baseline but increased in the VLNC group over time as combusted tobacco use declined

The toxic chemicals in tobacco smoke irritate the lining of your airways, causing them to constrict and making it harder for you to breathe

I wonder what do you take of that statement from the tobacco company

PMID 2136102
