Funding for this research was provided by:
National Institute on Drug Abuse (DA R01 013709)
the National Institute on Drug Abuse of the National Institutes of Health (T32DA017629)
the National Institute of Child Health and Human Development (HD R01 092439)
Received: 9 May 2017
Accepted: 16 January 2018
First Online: 13 February 2018
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: The study procedures were approved by PSU Institutional Review Board # PRAMS00038100.
: All youths and families were informed about and consented to participate in this project.