Serdar G. Terzioğlu, Department of General Surgery, Ankara City Hospital, Ankara, Turkey
Murat Ö. Kılıç, Department of Surgical Oncology, Eskisehir City Hospital, Eskisehir, Turkey
Pınar Öksüz, Department of Pathology, Ankara City Hospital, Ankara. Turkey
Ahmet Gürer, Department of General Surgery, Ankara City Hospital, Ankara, Turkey