The rest of the story is that not only is CDC failing to disclose the important conflicts of interest of the 2014 Surgeon General's report authors, but OSH is involved in a cover-up. Apparently, OSH has deliberately chosen to hide these conflicts of interest from the public.

Although the survey approach described above would lead to "invalid" results, I would never argue that survey studies should be thrown out and that we should only be conducting RCTs. My point is that there are strengths and limitations of various study designs, and causal inference is enhanced by having research evidence from multiple study designs. On balance, the strengths and weaknesses balance each other out, leading to a much greater ability to draw valid conclusions.

There is no medical advice on this website. Under no conditions should you assume that the opinions and advice you find here is meant to treat, cure, or otherwise prevent any ailment. The information on this site is the personal opinion of the authors and we take no accountability for this information to be used otherwise. Electronic cigarettes are not FDA approved, not 100% safe, and they should not be used by underage persons, or pregnant women. Smoking is dangerous and vaping can also cause health related issues. I are grateful to be of service and provide you valuable information at no cost. To do this, please be aware that when you click hyperlinks and buy products, in many (not every) instances I may receive some sort of affiliate compensation. Your support in purchasing with these hyperlinks allows me to assist people who smoke discover the information they are looking for to make the switch to the better alternative, electronic cigarettes.

LAST：2014 Factory Directly Supply New Design E cig IGO W4 Atomizer Wholesale Price Max Vapor ,Fit with 510/EGO/MOD Batteries |NEXT：Attention!!! Newest pen style electronic smoking,lady e cig Esmart