1. Kutahya Evliya Celebi Government Hospital, Department of Radiation Oncology, Kutahya
2. Ankara University Medical School, Department of Medical Oncology, Ankara
3. Ankara Diskapi Yildirim Beyazit Training and Research Hospital, Department of Cardiovascular Surgery, Ankara
4. Gazi University Medical School, Department of Radiation Oncology, Ankara
5. Ankara University Medical School, Department of Pathology, Ankara, Turkey