In contrast, cMRTP aerosols applied at equivalent nicotine concentrations had little or no effect on these markers in these cultures [40, 46]
Again, that is what the FDA should be doing
Although they admitted that a threshold for nicotine addiction is a theoretical concept ..., these researchers still postulated a safe concentration of nicotine in cigarettes that would prevent addiction in new smokers
doi: 10.1136/jech.36.2.113
Another study, published online in August 2020 in the Journal of Adolescent Health , said that young adults who smoked e-cigarettes, regular cigarettes, or both were five to seven times more likely to be diagnosed with COVID-19 than nonusers
As far as Im concerned that means they should be banned, Ficq told the the AD