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"Safety evaluation and risk assessment of electronic cigarettes as tobacco cigarette substitutes: a systematic review"

Nicotine patches provide pharmacological support without oral irritation

They measured TSNAs in concentration ranges of 0.3460.08 g/L (64.8 percent detection frequency) for N -nitrosonornicotine (NNN), 0.229.84 g/L (88.6 percent detection frequency) for 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), 0.1111.11 g/L (54.3 percent detection frequency) for N -nitrosoanabasine (NAB), and 0.0962.19 g/L (75.2 percent detection frequency) for N -nitrosoanatabine

Harris, are you sure you're alright