Study: Dr. Farsalinos looked at 13k people (1/2 Smokers, 1/2 not) finds that most vapers are ex-smokers, vapers more likely to quit smoking. User gfolder, 14 Feb 2020
Study: Dr. Farsalinos looked at 13k people (1/2 Smokers, 1/2 not) finds that most vapers are ex-smokers, vapers more likely to quit smoking. User lestermagneto, in the Reddit's Global Vaping Community subreddit, 13 Feb 2020
Study: Dr. Farsalinos looked at 13k people (1/2 Smokers, 1/2 not) finds that most vapers are ex-smokers, vapers more likely to quit smoking. User mstave, in the e-cigs - Electronic Cigarette & Vaping subreddit, 13 Feb 2020