1. Department of Visceral, Transplant and Thoracic Surgery, Center of Operative Medicine, Medical University Innsbruck, A‑6020 Innsbruck, Austria
2. Department of Surgery, Paracelsus Medical University, A‑5020 Salzburg, Austria
3. Institute of Pathology, Paracelsus Medical University, A‑5020 Salzburg, Austria
4. Department of Internal Medicine I, Paracelsus Medical University, A‑5020 Salzburg, Austria