1. Department of Medicine Division of Gastroenterology Kurume University School of Medicine Kurume Japan
2. Storr Liver Centre Westmead Institute for Medical Research Westmead Hospital and University of Sydney Sydney New South Wales Australia
3. Medical Examination Section Medical Examination Part Facilities Public Utility Foundation Saga Prefectural Health Promotion Foundation Saga Japan
4. Kumamoto Central Hospital Kikuchi Japan
5. Terao Hospital Kumamoto Japan