1. Department of Medical Oncology, University of Health Sciences, Sultan II. Abdulhamid Khan Educational and Research Hospital, 34660 Istanbul, Turkey
2. Department of Pathology, University of Health Sciences, Sultan II. Abdulhamid Khan Educational and Research Hospital, 34660 Istanbul, Turkey
3. Department of Medical Oncology, Yeditepe University Koşuyolu Hospital, 34718 Istanbul, Turkey