Funding for this research was provided by:
National Institute of Mental Health (R21MH098124, R01MH072961)
National Institute on Drug Abuse (R01DA038466)
Received: 8 April 2019
Accepted: 15 August 2019
First Online: 23 August 2019
Ethics approval and consent to participate
: Ethics approval for this study was obtained from the UCSD Human Research Ethics Committee (706078). Informed consent was obtained from all relevant participants.
: Not applicable
: The authors declare that they have no competing interests.