1. University of Bern, Department of Psychology, Clinical Psychology and Psychotherapy Section, Muesmattstrasse 45, 3000 Bern 9, Switzerland.
2. Privatklinik Wyss AG, Munchenbuchsee, Switzerland.
3. Psychiatric Outpatient Services (EPD), Liestal, Switzerland.
4. Institut für Psychologie, Georg-August-Universität, Göttingen, Germany.
5. University of Bern, Switzerland.