1Department of Hematology, Göztepe Prof. Dr. Süleyman Yalçın City Hospital, Istanbul, Turkey
2Department of Gastroenterology, SBÜ Sancaktepe Şehit Prof. Dr. İlhan Varank Training and Research Hospital, Istanbul, Turkey
3Department of Medical Oncology, BAU Medicine School Göztepe Medical Park Hospital, Istanbul, Turkey
4Department of Internal Medicine, Sultan 2 Abdulhamid Han Training and Research Hospital, Istanbul, Turkey
5Department of Internal Medicine, Anadolu Medical Center, Kocaeli, Turkey
6Department of Internal Medicine, Florence NightingaleHospital, Istanbul, Turkey