1. Division of Gastroenterology Department of Medicine Kurume University School of Medicine Kurume Japan
2. Storr Liver Centre Westmead Institute for Medical Research Westmead Hospital and University of Sydney New South Wales Australia
3. Education and Research Center for Community Medicine Faculty of Medicine, Saga University Saga Japan
4. Division of Cardiovascular Medicine Department of Medicine Osaka University Graduate School of Medicine Osaka Japan
5. Medical Examination Section Medical Examination Part Facilities Public Utility Foundation Saga Prefectural Health Promotion Foundation Saga Japan
6. Division of Metabolism and Endocrinology Faculty of Medicine Saga University Saga Japan
7. Liver Center Saga University Hospital Saga Japan