Ober, A. J.
Dangerfield, D. T. II
Shoptaw, S.
Ryan, G.
Stucky, B.
Friedman, S. R.
Funding for this research was provided by:
National Institute on Drug Abuse (5 R03 DA035689-02)
Article History
First Online: 13 May 2017
Compliance with Ethical Standards
:
: Funding for this study was providing by NIDA grant 5 R03 DA035689-02.
: All procedures were in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards and were in accordance with the ethical standards of and approved by the RAND Human Subjects Protection Committee.