The study concludes that "e-cigarette use is aggravating rather than ameliorating the tobacco epidemic among youths."
2. Propylene glycol and/or glycerin
LAST:Alibaba express Infinite Apo atomizer apo rda apo atomizer clone igo w3 atomizer clone |NEXT:Elikang 2013 Europe Best-selling Ecigarette,China Import Electronic Cigarettes