1. Department of Internal Medicine; Amagasaki Central Hospital; Hyogo Japan
2. Department of Hematology and Oncology; Nagoya City University Graduate School of Medical Sciences; Nagoya Japan
3. Department of Virology and Liver Unit; Nagoya City University Graduate School of Medical Sciences; Nagoya Japan
4. Division of Hematology, Department of Internal Medicine; Hyogo College of Medicine; Hyogo Japan
5. The Research Center for Hepatitis and Immunology; National Center for Global Health and Medicine; Ichikawa Japan
6. Department of Tumor Immunology; Aichi Medical University School of Medicine; Aichi Japan