Neither the survey approach or the RCT approach is perfect. Both have major strengths and significant limitations. The best way to proceed is to conduct both types of studies and to synthesize the results across study designs, keeping in mind the methodological strengths and limitations of each individual study. Only by looking at this totality of the evidence can we draw valid scientific conclusions.

A spokesperson from one of the leading national anti-smoking groups commented: "The more things change, the more they stay the same. This just goes to show that the tobacco industry is still able to unduly influence medical research reporting, even if they are not currently paying their consulting scientists. These conflicts of interest were firmly established in the past and the conflicted scientists continue to do the tobacco industry's bidding."

The truth, in fact, is that NJOY's explicit value proposition is that it is trying to eviscerate the combustible cigarette market. While NJOY has the courage and values to stand up and work for the decimation of combustible cigarettes, that is something which Senators Rockefeller, Boxer, and Blumenthal do not have the fortitude to do. Instead, they have supported the institutionalization and protection of the tobacco cigarette market and are doing everything they can to protect real cigarettes from potential competition from far safer, fake ones.

Of course, this is the same thing as stating that cigarette smoking may be no worse than vaping in terms of its effects on pulmonary function.

LAST：super slim PCC electronic cigarette better than other with wholesale supplier ss-itop e cigarette |NEXT：2013 China best electronic cigarette wholesale