Integrated risk information system of the US Environmental Protection Agency
The finding that the only prospective study to date did not confirm the positive cross-sectional associations reported elsewhere suggests that the relationship between e-cigarette use and hypertension may be more nuanced than cross-sectional data alone can reveal [22]
It is also well established that cigarette smoking has negative implications on cancer outcomes, including increasing disease progression, incidence of second primary tumors, and treatment-related toxicity, and reducing patient survival 7,8,9,10,11,12
E-cigarettes are primarily used by adults who smoke, have smoked, and/or want to quit
also from US 360 west a couple miles