- Between 2005 and 2010, served as Head of the Division of Gastroenterology-Hepatology at Istanbul University Faculty of Medicine.
- Organized numerous national and international gastroenterology congresses and postgraduate meetings.
- Between 1999 and 2007, served as Head of the Istanbul Branch of the Turkish Society of Gastroenterology.
- Holds the titles of Fellow of the American College of Gastroenterology (Member of the American College of Gastroenterology) and Fellow of the European Board of Gastroenterology (Member of the European Board of Gastroenterology).
- Has more than 300 national and international articles and book chapters, and 1,800 international citations.
- Serves as a reviewer for national and international gastroenterology journals.
- Described Mungan Syndrome.
- Main clinical areas of interest:
- Reflux disease,
- Helicobacter pylori and stomach diseases,
- Gastrointestinal motility,
- Functional bowel diseases,
- Inflammatory bowel diseases,
- Liver diseases,
- Endoscopy.
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