*
contributed equally
1 Department of Psychosomatic Medicine and Psychotherapy, Park-Klinik Sophie Charlotte, Berlin, Germany
2 Physical and Rehabilitation Medicine, Clinic of Trauma, Reconstructive Surgery and Rehabilitation Medicine, University Medicine Greifswald, Greifswald, Germany
3 Siemens AG, Technology, 13623 Berlin, Germany
4 Center for Clinical Research, BG Klinikum Unfallkrankenhaus Berlin gGmbH, Berlin, Germany
5 Department of Trauma and Orthopaedic Surgery, BG Klinikum Unfallkrankenhaus Berlin gGmbH, Berlin, Germany
6 BG Kliniken – Hospital Group of the Statutory Accident Insurance, Berlin, Germany
Correspondence: c.firle@gmx.eu