1. Ministry of Health Tokat State Hospital, Clinic of Surgical Oncology
2. Ondokuz Mayıs University Faculty of Medicine, Department of General Surgery, and Surgical Oncology
3. Mehmet Akif İnan Education and Research Hospital, Clinic of Surgical Oncology
4. İstinye University Gaziosmanpaşa Medikalpark Hospital, Clinic of General Surgery and Surgical Oncology
5. Ministry of Health Sivas Numune State Hospital, Clinic of Surgical Oncology