I thought using nicotine-free e-liquid would be fine but ...
http://www.nejm.org/doi/full/10.1056/NEJMc1413069
also, there is a growing body of evidence that points toward Nicotine being the cause of cancder, not the tar or smoke tec ...
http://www.nejm.org/doi/full/10.1056/NEJMc1413069
also, there is a growing body of evidence that points toward Nicotine being the cause of cancder, not the tar or smoke tec ...