The randomized study provides a number of important benefits that can never be realized in a survey study. Most importantly, the RCT can equalize between study groups the known and unknown confounding variables that may lead to invalid study results.

My name is Brian (E-Cig Twigg), and I was a smoker for almost 20 years. My life has changed for the better since I had my . I believe e-cigarettes have saved the life of my wife as well as my own, and I hope you will find this website useful and valuable. I have seen many friends and family members switch to e-cigarettes in the last few years, and I wanted to teach other smokers about e-cigarettes so they could benefit from my trials and errors.

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