how many carcinogens are in tobacco smoke carcinogens, their biomarkers and tobacco-induced cancer Cigarette smoke components and their
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(Oxf.) 205 , 4160 (2012)
Am J Public Health 94 (2):32630 Bureau of Labor Statistics (2020) CPI Inflation Calculator

Significantly reduced (9499%) cytotoxicity in human bronchial epithelial cells, measured using the neutral red uptake assay, was observed following exposure to e-cigarette aerosols compared to cigarette smoke [13, 14]
But, as your buds, we want you to know that the consumption methods dont stop there

It was likely that they themselves picked up the habit from Spanish and Portuguese sailors