Article History
Received: 12 June 2019
Accepted: 2 August 2019
First Online: 24 August 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: This study was deemed “exempt from review” by the Colorado Multiple Institution Review Board.
: Centers for Disease Control personnel obtained written consent and permission by parents or legal guardians of selected youth prior to student participation in the National Youth Tobacco Survey.