Department of Human Researches, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
2.Department of Marmara University Institute of Gastroenterology, İstanbul
3.Department of Gastroenterology, Acıbadem University School of Medicine, İstanbul
4.Division of Gastroenterology and Hepatology, University of Missouri, Columbia, Missouri, USA
5.Departments of Biochemistry and Pathology, Marmara University, School of Medicine, İstanbul
6.Departments of Pathology, Marmara University, School of Medicine, İstanbul
7.Department of Gastroenterology, Marmara University School of Medicine, İstanbul
8.Departments of Gastroenterology, Acıbadem University, School of Medicine, İstanbul