1. University Clinic of Psychosomatic Medicine; Innsbruck Medical University; Innsbruck Austria
2. Parnassia Psychiatric Institute; The Hague The Netherlands
3. Department of Psychiatry; University Medical Center Groningen; University of Groningen; The Netherlands
4. Department of Epidemiology; Mailman School of Public Health; Columbia University; New York
5. University Clinic of Biological Psychiatry; Innsbruck Medical University; Innsbruck Austria
6. Department of Psychology; University of Innsbruck; Innsbruck Austria
7. University Clinic for Psychiatry; Bern Switzerland
8. Psychiatric CL-Service at the General Public Hospital of the Brothers of St. John of God; Salzburg Austria
9. Biological Psychiatry Laboratory; McLean Hospital/Harvard Medical School; Boston