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Instead, they use real tobacco leaves that contain many of the same naturally occurring toxins and cancer-producing substances as cigarettes

Metal and silicate particles including nanoparticles are present in electronic cigarette cartomizer fluid and aerosol

Active and passive cigarette smoking and breast cancer risk: results from the EPIC cohort

The size of the particle determines how it gets inhaled, but the chemistry of it will determine how toxic it might be in the body, he says

Our systematic review approach and meta-analytic methods have numerous benefits over existing systematic reviews and meta-analyses on the same topic that use traditional random effects models

The Cochrane Database of Systematic Reviews 2020, Issue 3