International Journal of Drug Policy
Volume 19, Issue 6 , Pages 442-449, December 2008

Heroin transition risk among daily and non-daily cannabis users who are non-injectors of heroin

  • Avelardo Valdez

      Affiliations

    • Office for Drug and Social Policy Research, Graduate College of Social Work, University of Houston, 237 Social Work Building, Houston, TX 77204-4013, United States
    • Corresponding Author InformationCorresponding author. Fax: +1 713 743 3985.
    • ,
  • Alice Cepeda

      Affiliations

    • Office for Drug and Social Policy Research and Department of Sociology, University of Houston, 237 Social Work Building, Houston, TX 77204-4013, United States
    • Fax: +1 713 743 3985.
    • ,
  • Alan Neaigus

      Affiliations

    • Institute for International Research on Youth at Risk, National Development and Research Institutes, Inc., 71 West 23rd Street, 8th Floor New York, NY 10010, United States
    • ,
  • Amy Russell

      Affiliations

    • Office for Drug and Social Policy Research, Graduate College of Social Work, University of Houston, 237 Social Work Building, Houston, TX 77204-4013, United States
    • Fax: +1 713 743 3985.

Received 20 October 2006; received in revised form 13 June 2007; accepted 18 June 2007. published online 07 August 2007.

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PII: S0955-3959(07)00114-4

doi:10.1016/j.drugpo.2007.06.004

International Journal of Drug Policy
Volume 19, Issue 6 , Pages 442-449, December 2008

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