1. Division of Gastroenterology and Hepatology, Department of Medicine Phramongkutklao Hospital and College of Medicine Bangkok Thailand
2. Department of Family Medicine Phramongkutklao Hospital and College of Medicine Bangkok Thailand
3. Division of Endocrinology, Department of Medicine Phramongkutklao Hospital and College of Medicine Bangkok Thailand
4. Division of Gastroenterology, Department of Medicine Chulalongkorn University Bangkok Thailand
5. Divison of Cardiology, Department of Medicine Phramongkutklao Hospital and College of Medicine Bangkok Thailand