[1] Med Univ Graz, Dept Psychiat & Psychotherapeut Med, Graz, Austria
[2] Gruner Kreis Soc, Ctr Integrat Addict Res, Vienna, Austria
[3] Univ Vienna, Inst Religious Studies, Vienna, Austria
[4] Med Univ Graz, Div Immunol & Pathophysiol, Graz, Austria
[5] Karl Franzens Univ Graz, Inst Psychol, Graz, Austria
[6] Med Univ Graz, Dept Psychiat & Psychotherapeut Med, Auenbruggerpl 31, A-8036 Graz, Austria