1. Institute of Databases and Information Systems, Ulm University,Ulm,Germany
2. Berlin Institute of Health, Charité - Universitätsmedizin Berlin,Berlin,Germany
3. Ulm University,Department of Clinical Psychology and Psychotherapy,Ulm,Germany
4. Eastern Switzerland University of Applied Sciences, St. Gallen, and University of Regensburg,Regensburg,Germany
5. Institute of Clinical Epidemiology and Biometry, University of Würzburg,Würzburg,Germany
6. Charité - Universitätsmedizin Berlin,Department of Psychosomatic Medicine,Berlin,Germany