4. Overall motivation to quit has increased since the dramatic rise in e-cigarette use.

In his on the Hit & Run blog, Jacob Sullum nicely points out the way in which Dr. Frieden is completely ignoring the multitude of data showing that literally thousands of ex-smokers were able to quit smoking using electronic cigarettes. He continues to call these people nothing but "anecdotes." Sullum also points out that Dr. Frieden is " from whole cloth in an effort to portray theproduct as a grave threat to public health and a menace to 'ourchildren.'"

Peter Hajek, director of the Tobacco Dependence Research Unit at Queen Mary, University of London, also this critical flaw in the study: ""The authors followed up smokers who tried e-cigarettes but did not stop smoking, and excluded smokers who tried e-cigarettes and stopped smoking," he said. "Like smokers who fail with any method, these were highly dependent smokers who found quitting difficult. The authors concluded that e-cigarette (use) was not helpful, but that would be true for any treatment however effective if only treatment failures were evaluated."

The authors admit this in the paper. They write: "This is a cross-sectional study, which only allows us to identify associations, not causal relationships."

LAST：Best copper e-cigarette mechanical mod stingray mod 4nine mod for liquid electronic cigarette |NEXT：e cigarette christmas gift ,wholesale ecig for ecig EGO-CE4