Funding for this research was provided by:
National Institute on Drug Abuse (R01 DA018225, R01 DA013709)
National Institute on Alcohol Abuse and Alcoholism
W.T. Grant Foundation (8316)
Text and Data Mining valid from 2019-04-15
Received: 2 January 2019
Accepted: 28 February 2019
First Online: 15 April 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: The procurement of the data required for this study was approved by the Iowa State University and Pennsylvania State University institutional review boards.
: All youth and families were informed about and consented to participate in the data collection for this project.