1. Institute of Psychosocial Medicine, Psychotherapy and Psychooncology, University Hospital Jena, Jena, Germany
2. Department of Psychotherapy and Psychosomatic Medicine, Technische Universität Dresden, University Hospital Carl Gustav Carus, Dresden, Germany
3. Medical Psychology and Medical Sociology, Clinic for Psychotherapy and Psychosomatic Medicine, School of Medicine, University of Mainz, Mainz, Germany