1. Division of Gastroentero‐Hepatology Department of Internal Medicine Faculty of Medicine Universitas Airlangga Surabaya Indonesia
2. Institute of Tropical Diseases Universitas Airlangga Surabaya Indonesia
3. Department of Environmental and Preventive Medicine Oita University Faculty of Medicine Yufu Japan
4. Gastroenterology and Hepatology Section Department of Medicine Baylor College of Medicine Houston TX USA
5. Division of Gastroenterology Department of Internal Medicine Faculty of Medicine University of Indonesia Jakarta Indonesia
6. Faculty of Medicine University of Muhammadiyah Surabaya Surabaya Indonesia
7. Department of Molecular Pathology Faculty of Medicine Oita University Oita Japan
8. Global Oita Medical Advanced Research Center for Health Yufu Japan