Funding for this research was provided by:
National Institute on Drug Abuse (2K24-DA16170)
National Institute of Neurological Disorders and Stroke (U54-NS56883)
National Institute on Minority Health and Health Disparities (G12 MD007601)
Article History
Received: 29 December 2016
Accepted: 9 February 2017
First Online: 16 March 2017
Compliance with Ethical Standards
:
: The authors have declared that no conflict of interest exists.