1 Department of Psychosomatic Medicine and Psychotherapy, Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Hauptstr. 8, 79104, Freiburg, Germany.
2 Department of Psychology, Clinical Psychology and Psychotherapy, University of Freiburg, Freiburg, Germany.
3 CHS-Institut, Berlin, Germany.
4 Department of Psychosomatic Medicine and Psychotherapy, Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Hauptstr. 8, 79104, Freiburg, Germany. stefan.schmidt@uniklinik-freiburg.de.
5 Institute for Frontier Areas and Mental Health, Freiburg, Germany. stefan.schmidt@uniklinik-freiburg.de.