A second major advantage of a clinical trial is that it can examine the potential effectiveness of interventions in which the use of a product is promoted for use among smokers who are interested in quitting. A survey cannot do this, because it can only examine the use of products under current conditions. It provides no information on what would happen if the product was actively promoted to a group of smokers, as it is in a clinical trial.

However, in February 2014, there is one entity that continues to reiterate the lies of the 1970s ...

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