Funding for this research was provided by:
National Institute on Drug Abuse (DA043204, DA045011, DA039167)
National Institute on Drug Abuse (DA011792)
Article History
Received: 4 April 2019
Revised: 21 May 2019
Accepted: 24 May 2019
First Online: 10 June 2019
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.