Funding for this research was provided by:
National Institute on Drug Abuse (DA-10543, DA-026485)
National Institute of Mental Health (MH 091114)
Text and Data Mining valid from 2018-11-09
Received: 3 April 2018
Accepted: 26 October 2018
First Online: 9 November 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: There are no competing financial interests in relation to the work described.