Funding for this research was provided by:
National Institute on Drug Abuse (P50 DA010075, P50 DA039838, T32 DA017629)
National Institutes of Health (K01 ES025437)
National Science Foundation (DGE-1144860)
Article History
Received: 23 December 2015
Revised: 31 July 2016
Accepted: 19 August 2016
First Online: 25 August 2016
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.