1. Institute of Psychology, University of Innsbruck, Tyrol, Austria
2. Department of Psychiatry and Psychotherapy III, University of Ulm, Baden-Württemberg, Germany
3. Psychosomatic and Psychotherapy Clinic, University of Ulm, Baden-Württemberg, Germany
4. Federal Institute for Drugs and Medical Devices, Bonn, Germany,
5. Center for Translational Medicine, University of Bonn Medical School, Bonn, Germany