Istanbul University, Cerrahpaşa Medical Faculty, Department of Internal Medicine, Istanbul
2.Department of Gastroenterology, İstanbul University Cerrahpaşa Medical Faculty, İstanbul
3.Gastroenterology Department, Cerrahpaşa MEdical Faculty, İstanbul University, İstanbul
4.Department of Gastroenterology, İstanbul University, Cerrahpaşa School of Medicine, İstanbul
5.Departments of Pathology and Biochemistry, İstanbul University Cerrahpasa Medical Faculty, İstanbul
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