Fig 2. Youth (age 12–17) quarterly e-cigarette TV target rating points (TRPs) by top 10 Nielsen retail market, 2013–2019.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.