Funding for this research was provided by:
National Institute of Mental Health (R01MH084757)
National Institute on Drug Abuse (9K24DA040489)
Text and Data Mining valid from 2019-05-07
First Online: 7 May 2019
Compliance with Ethical Standards
: The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health, or any of the other funders.
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.