Perhaps the most useful contribution of this paper is that it readily demonstrates why the approach being used by Stan Glantz to assess the effectiveness of e-cigarettes for smoking cessation is inappropriate and leads to erroneous conclusions.

When students take their final exam in my course, they are all experiencing acute effects on their respiratory tracts. In fact, if you were to measured their exhaled nitric oxide levels, you would find that there is a significant reduction, just as is observed with smoking.

It may sound like a strong, courageous action from a Board of Health that is being guided by the solid, consistent principle that all nonsmokers should be protected from exposure to secondhand smoke, period.

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