But Professor Chapman said the letter was deceptive.

Thus, the authors readily acknowledge that it is impossible from this study to determine whether or not e-cigarettes lead to smoking or whether smoking leads to e-cigarette experimentation.

• The truth is that there are at least 10 published studies that examined the health effects of electronic cigarettes. And this doesn't even include the more than 20 studies in which the chemical constituents of electronic cigarette liquids or vapor have been analyzed using gas chromatography/mass spectrometry.

LAST：2014 Alibaba China Wholesale Health Best E Cigarettes |NEXT：Most popular products liquid thc e cigarette copper panzer mech mod