1. Department of Medical Oncology, Adnan Menderes University Faculty of Medicine, Aydin 09010, Turkey
2. Department of Medical Oncology, Dicle University Faculty of Medicine, Diyarbakir 21280, Turkey
3. Department of Medical Oncology, Numune Training and Research Hospital, Ankara 06230, Turkey
4. Department of Medical Oncology, Dr L�tfi Kirdar Kartal Training and Research Hospital, İstanbul 34865, Turkey
5. Department of Pathology, Adnan Menderes University Faculty of Medicine, Aydin 09010, Turkey