1. Department of Visceral, Transplant and Thoracic Surgery, OrganLife, Medical University of Innsbruck, Innsbruck, Austria.
2. Department for Hearing, Speech, and Voice Disorders, Medical University of Innsbruck, Innsbruck, Austria.
3. Department for Orthopaedics and Traumatology, Medical University of Innsbruck, Innsbruck, Austria.
4. Institute of Analytical Chemistry and Radiochemistry, Innsbruck, Austria.
5. Department of Pathology, Medical University of Innsbruck, Innsbruck, Austria.
6. Department of Visceral, Transplant, Thoracic and Vascular Surgery, Leipzig University Clinic, Leipzig, Germany.