Terry-McElrath, Yvonne M. MSA; O'Malley, Patrick M. PhD; Johnston, Lloyd D. PhD
From the Institute for Social Research, University of Michigan, Ann Arbor, MI.
Send correspondence and reprint requests to Yvonne M. Terry-McElrath, MSA, Institute for Social Research Room 2344, University of Michigan, PO Box 1248, Ann Arbor, MI 48106. E-mail: [email protected].
Supported by the National Institute on Drug Abuse (DA01411).
The study sponsor had no role in (a) study design; (b) the collection, analysis, and interpretation of data; (c) the writing of the report; or (d) the decision to submit the manuscript for publication. The views expressed in this article are those of the authors and do not necessarily reflect the views of the funder.
None of the authors have financial disclosures or commercial associations that might pose a conflict of interest.
Received May 23, 2013
Accepted September 05, 2013
