Funding for this research was provided by:
National Institute on Drug Abuse (R01 DA029010)
Text and Data Mining valid from 2018-03-22
Received: 17 November 2017
Accepted: 11 March 2018
First Online: 22 March 2018
Ethics approval and consent to participate
: Approval to conduct the study was obtained from Human Subjects Review Boards at George Mason University and the University of North Texas Health Science Center.
: Not applicable.
: None of the authors have any competing interests in the manuscript.
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