APA

Schäfer A., Wittchen H., Backmund M., Soyka M., Gölz J., Siegert J., Schäfer M., Tretter F. & Kraus M. R. (20090701). Psychopathological changes and quality of life in hepatitis C virus-infected, opioid-dependent patients during maintenance therapy. : Addiction (Abingdon, England).

Chicago

Schäfer Arne, Wittchen Hans-Ulrich, Backmund Markus, Soyka Michael, Gölz Jörg, Siegert Jens, Schäfer Martin, Tretter Felix and Kraus Michael R. 20090701. Psychopathological changes and quality of life in hepatitis C virus-infected, opioid-dependent patients during maintenance therapy. : Addiction (Abingdon, England).

Harvard

Schäfer A., Wittchen H., Backmund M., Soyka M., Gölz J., Siegert J., Schäfer M., Tretter F. and Kraus M. R. (20090701). Psychopathological changes and quality of life in hepatitis C virus-infected, opioid-dependent patients during maintenance therapy. : Addiction (Abingdon, England).

MLA

Schäfer Arne, Wittchen Hans-Ulrich, Backmund Markus, Soyka Michael, Gölz Jörg, Siegert Jens, Schäfer Martin, Tretter Felix and Kraus Michael R. Psychopathological changes and quality of life in hepatitis C virus-infected, opioid-dependent patients during maintenance therapy. : Addiction (Abingdon, England). 20090701.