1. Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
2. Department of Clinical Psychology and Psychotherapy, Institute of Psychology, University of Bern, Bern, Switzerland
3. Department of Psychology, University of Copenhagen, Copenhagen, Denmark
4. Existential Psychology Lab, Institute of Psychology, University of Innsbruck, Innsbruck, Austria
5. MF Norwegian School of Theology, Religion and Society, Department of Social Sciences, Oslo, Norway