Frontiers Direct health implications of e cigarette use: a systematic scoping review with evidence assessment E Cigarettes and Vaping PPAC Central PDF) Patterns of E Cigarette Use Among Youth and Young Adults: Review of the Impact of E Cigarettes on Cigarette Smoking While vaping is not risk free, it is less harmful than tobacco Our World in Data E cigarettes: Facts, stats and regulations E cigarettes linked with blood vessel damage National Institutes of Health (NIH)