Kirkpatrick, Robert M.
Neale, Michael C.
Funding for this research was provided by:
National Institute on Drug Abuse (DA026119)
Article History
Received: 3 November 2014
Accepted: 6 October 2015
First Online: 24 October 2015
Compliance with Ethical Standards
:
: Robert M. Kirkpatrick and Michael C. Neale declare that they have no conflict of interest.
: The MTFS was reviewed and approved by the Institutional Review Board at the University of Minnesota. Written informed assent or consent was obtained from all participants, with parents providing written consent for their minor children.