1 Department of Clinical Psychology and Psychotherapy, Institute of Psychology, University of Goettingen, Goettingen, Germany, timo.brockmeyer@uni-goettingen.de.
2 Center for Psychosocial Medicine, Department of General Internal Medicine and Psychosomatics, Heidelberg University Hospital, Heidelberg, Germany, timo.brockmeyer@uni-goettingen.de.
3 Department of Psychosomatic Medicine and Psychotherapy, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany, timo.brockmeyer@uni-goettingen.de.
4 Department of Psychosomatic Medicine and Psychotherapy, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.
5 Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tuebingen, Tuebingen, Germany.
6 Center for Psychosocial Medicine, Department of General Internal Medicine and Psychosomatics, Heidelberg University Hospital, Heidelberg, Germany.
7 Department of Psychosomatic Medicine and Psychotherapy, LVR Hospital Essen, University of Duisburg-Essen, Essen, Germany.
8 Department of Psychosomatic Medicine and Psychotherapy, Hannover Medical School, Hannover, Germany.
9 Department of Psychosomatic Medicine and Psychotherapy, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
10 Department of Psychosomatic Medicine and Psychotherapy, LWL University Hospital, Ruhr-University of Bochum, Bochum, Germany.
11 Department of Psychosomatic Medicine and Psychotherapy, University Hospital Munster, Munster, Germany.
12 Institute and Outpatients Clinic for Psychosomatic Medicine and Psychotherapy, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
13 Department of Psychosomatic Medicine and Psychotherapy, University Hospital of Ulm, Ulm, Germany.
14 Department of Psychosomatic Medicine and Psychotherapy, University Hospital Freiburg, Freiburg, Germany.