1. University of Health Sciences Turkey, Gülhane Training and Research Hospital, Clinic of Internal Medicine, Division of Immunology and Allergy, Ankara, Turkey

2. University of Health Sciences Turkey, Gülhane Faculty of Medicine, Department of Pathology, Ankara, Turkey

3. University of Health Sciences Turkey, Gülhane Training and Research Hospital, Clinic of Internal Medicine, Division of Medical Oncology, Ankara, Turkey

4. University of Health Sciences Turkey, Gülhane Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey

5. University of Health Sciences Turkey, Gülhane Faculty of Medicine, Department of Internal Medicine, Division of Gastroenterology, Ankara, Turkey