"Smoking is no more hazardous than taking an exam in terms of its acute respiratory effects."

Without adding a descriptor of some sort, the cigarette companies would not have been able to distinguish their sub-brands. For example, Marlboro "Lights" would now be called "Marlboro." Marlboro "Ultra-Lights" would now be called "Marlboro." And Marlboro "Milds" would now be called "Marlboro." Thus, there would be three brands on the market, all called simply "Marlboro," and consumers would have no way of telling them apart.

From a public health perspective, the effectiveness of e-cigarettes for smoking cessation must be assessed by examining how effective the product is for smokers who are trying to quit. When you do that properly, this initial evidence suggests that you find out e-cigarettes are a viable smoking cessation aid for a subset of smokers.

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