Here, they find a correlation between e-cigarette use and higher and more sustained levels of smoking. But because this is a cross-sectional study, they cannot determine which came first. In other words, what is the direction of the causal relationship? Does the e-cigarette use precede, and cause, the smoking? Or does the smoking precede, and cause, the e-cigarette use?

1. According to his own 2008 JAMA : "In the past 5 years, Dr Fiore reports that he has lectured and consulted for Pfizer and has served as an investigator on research studies at the University of Wisconsin (UW) that were supported by GlaxoSmithKline, Nabi, Pfizer, and sanofi-aventis."

To me personally it is really an art form and making it by hand meets my needs more than a machine. However, the aspect of human error doesn’t escape me either as an E-Juice maker can easily confuse VG and PG if they are not paying attention and botch up my E-Juice (it’s happened before, most likely will happen again); either way I am happy to see both vendors taking safety and contamination into heavy consideration prior to making and selling their E-Juices. I’ve seen many stores that make their E-Juice out in the open, next to food or drinks, and keeps mixing materials in the bathroom (yuck). Avoid those stores at all costs as the last thing you want in your E-Juice is someone’s lunch!!

Whyso many tobacco control advocates want to protect cigarettes from competitionis baffling to me.

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