In order to draw the conclusion that Dr. Glantz drew in his comment, one would have to completely ignore this study. Obviously, Dr. Glantz has done exactly that. He has based his comment on one narrow study and ignored the rest of the literature.

Instead, these advocates argued that surveys are the best way to study the potential benefits of e-cigarettes. Surveys measure the real-life situation of how e-cigarettes and vapor products are actually used.

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