https://www.profitableratecpm.com/f4ffsdxe?key=39b1ebce72f3758345b2155c98e6709c
(MedPage Today) — Though the percentage of U.S. teenagers who vape nicotine has declined in recent years, daily vaping among those already doing so increased, as did unsuccessful quit attempts, a cross-sectional study suggested.
In a pooled sample…
