Wimmer implies that electronic cigarettes contain tobacco, arguing that: "There is no safe form of tobacco. Right now, the public health and medical community or consumers have no way of knowing what chemicals are contained in an e-cigarette or what the short and long term health implications might be."

There is one thing you almost never hear most anti-smoking advocates and groups say to smokers who have quit via electronic cigarettes ...

After one year follow-up, both the ex-smokers and dual users experienced a significant improvement in asthma symptoms and lung function, especially small airways obstruction. Although the improvements in lung function were small, the improvements in asthma symptoms were clinically relevant.

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