1. Department of Pathology, Tekirdag Dr. Ismail Fehmi Cumalioglu City Hospital, 59030 Tekirdag, Turkey
2. Institute of Pathology, University of Cologne, Faculty of Medicine and University Hospital Cologne, D‑50937 Cologne, Germany
3. Department of General, University of Cologne, Faculty of Medicine and University Hospital Cologne, D‑50937 Cologne, Germany
4. Department I of Internal Medicine, Center for Integrated Oncology, University of Cologne, Faculty of Medicine and University Hospital Cologne, D‑50937 Cologne, Germany