Funding for this research was provided by:
Health Resources and Services Administration (H97HA01293)
National Institute of Mental Health (5R01MH068746)
National Institute on Drug Abuse (9K24DA040489)
Text and Data Mining valid from 2019-03-13
Received: 27 April 2018
Revised: 28 September 2018
Accepted: 4 October 2018
First Online: 13 March 2019
Compliance with Ethical Standards
: 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 participants included in the study.