1. Department of General Surgery University of Health Sciences Turkey, Gaziosmanpasa Training and Research Hospital Istanbul Turkey
2. Department of Pathology University of Health Sciences Turkey, Gaziosmanpasa Training and Research Hospital Istanbul Turkey
3. Department of İnternal Medicine University of Health Sciences Turkey, Prof. Dr. Cemil Tascioglu City Hospital Istanbul Turkey
4. Department of Otolaryngology University of Health Sciences Turkey, Gaziosmanpasa Training and Research Hospital Istanbul Turkey