Bekir Muhammet Hacioglu ^a , Osman Kostek ^a , Bulent Erdogan ^a , Hilmi Kodaz ^b , Ilhan Hacibekiroglu ^c , Esma Turkmen ^d , Sernaz Uzunoglu ^a , Irfan Cicin ^a

^a Department of Medical Oncology, Faculty of Medicine, Trakya University, Turkey ^b Department of Medical Oncology, Dumlupınar University Evliya Celebi Training and Research Hospital, Turkey ^c Department of Medical Oncology, Sakarya University, Training and Research Hospital, Turkey ^d Department of Medical Oncology, Kocaeli Derince Training and Research Hospital, Turkey