1. Department of Gastroenterology and Hepatology, School of MedicineTokyo Medical and Dental University
2. Department of Gastroenterology and HepatologyMusashino Red Cross Hospital
3. Department of HepatologyToranomon Hospital
4. Department of Gastroenterology, Graduate School of MedicineThe University of Tokyo
5. Department of MedicineTeikyo University School of Medicine
6. The Second Department of Internal MedicineShinshu University School of Medicine
7. Department of Virology and Liver UnitNagoya City University Graduate School of Medical Science
8. Kagoshima City Hospital
9. Kansai‐Rosai Hospital
10. Department of Gastroenterology and HepatologyOsaka University Graduate School of Medicine
11. Department of Infectious Diseases, Graduate School of MedicineThe University of Tokyo