Moreover, what scientific evidence is the FDA looking for in order to approve a simple claim that electronic cigarettes are safer than tobacco cigarettes? If the overwhelming current evidence is not sufficient, then no evidence will ever be sufficient because there is no further research that is necessary in order to draw this conclusion. It doesn't take a rocket scientist to figure out that a product which burns tobacco and produces tobacco smoke with more than 10,000 chemicals including more than 60 carcinogens and causes more than 400,000 deaths per year is more harmful than a product which merely heats and aerosolizes nicotine from a solution of propylene glycol.

The report is also hiding the fact that many of its authors have or had financial conflicts of interest with pharmaceutical companies that manufacture the products about which the report provides a misleadingly positive review.

"While we have heard from former smokers who say e-cigarettes helped them quit, we have to ignore their statements because we just can't bring ourselves to admit that something which looks like a cigarette could possibly be a good thing and could have positive benefits like helping a smoker get off of tobacco cigarettes."

Question: Of these five studies, how many examined the rate of smoking cessation among smokers who were trying to quit using electronic cigarettes?

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