1. & Department of Psychiatry and Psychotherapy; Department of Psychiatry and Psychotherapy, Freiburg; Mainz Germany
2. Institute of Mental Health; Section of Forensic Mental Health; University of Nottingham, Duncan Macmillan House Porchester Road Nottingham UK NG3 6AA
3. Department of Medical Biometry and Statistics; German Cochrane Centre; University Medical Center Freiburg Stefan-Meier-Str. 26 Freiburg Germany 79104
4. Helmholtz Zentrum München Research Center for Health and Environment; Institute of Epidemiology; Ingolstädter Landstrasse 1 München Germany 85764
5. University Medical Center Mainz; Department of Psychiatry and Psychotherapy; Untere Zahlbacherstr 8 Mainz Germany D-55131