1. Alimentary Tract Research Center, Imam Khomeini Hospital Clinical Research Development Unit, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2. World Endoscopy Organization Emerging Star Group, WEO, Munich, Germany
3. Shahid Rajaie Cardiovascular, Medical & Research Center, Tehran, Iran
4. Assistant Professor of Hepatology and Gastroenterology, National Liver Institute, Menoufia University, Egypt
5. Lecturer Hepatology Gastroenterology and Infectious Diseases, Faculty of Medicine, Kafrelsheikh University, Cairo, Egypt
6. Gastrointestinal and Liver Diseases Research Center, Firouzgar Hospital, Iran University of Medical Sciences, Tehran, Iran
7. Lecturer, Internal Medicine Faculty - Hanoi Medical University (HMU), Vietnam
8. Gastroenterology and Hepatology Disease Research Center, Qom University of Medical Sciences, Qom, Iran
9. Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
10. Department of Internal Medicine, University of Medicine and Pharmacy, Hue University, Vietnam
11. Department of Internal Medicine A, Greifswald University of Medicine, Greifswald, Germany
12. Institute of Gastro and Liver Diseases, Fortis Hospital, Ludhiana, India
13. Department of Internal Medicine, Al-Azhar University, Cairo, Egypt
14. Hashemite University, Faculty of Medicine, Alzarqa, Jordan
15. Gastroenterology Division, Internal Medicine and Hematology Department, Semmelweis University, Budapest, Hungary
16. Interdisciplinary Gastroenterology Working Group, Semmelweis University, Budapest, Hungary