Exclusion criteria Exclusion criteria include as follows: at least weekly use of tobacco products other than cigarettes (e.g., oral tobacco, e-cigarettes)
The change rule of the three acids content of EA-group in 0 ~ 28 days was similar with that of water-group in 7 ~ 35 days, indicating that the addition of EA accelerated the generation and consumption of NOCs
However, at present our Customs and Police are on top of the problem, stopping importation of illegal tobacco at the border as well as the manufacture of illegal cigarettes onshore
Smokers often report subtly different taste/strength, packaging issues, or issues with damaged packs
Some of the studies found negative impacts of using e-cigarettes, some didnt, and many were uncertain