1. Digestive and Lifestyle Diseases; Department of Human and Environmental Sciences; Kagoshima University Graduate School of Medical and Dental Sciences; Kagoshima Japan
2. Department of HGF Tissue Repair and Regenerative Medicine; Kagoshima University Graduate School of Medical and Dental Sciences; Kagoshima Japan
3. Division of Gastroenterology and Hematology; Internal Medicine, Faculty of Medicine; University of Miyazaki; Miyazaki Japan
4. Center for Medical Education; Faculty of Medicine; University of Miyazaki; Miyazaki Japan
5. Department of Epidemiology; Boston University School of Public Health; Boston MA
6. Department of Virology and Liver Unit; Nagoya City University Graduate School of Medical Sciences; Nagoya Japan
7. Department of Human Genetics; Graduate School of Medicine; University of Tokyo; Tokyo Japan