1 Department of Hepatic Diseases, The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, 1-7-1 Kohonodi, Ichikawa, 272-8516, Chiba, Japan.
2 General Internal Medicine Department, Kyushu University Hospital, Fukuoka, 812-8582, Japan.
3 Digestive and Lifestyle Diseases, Department of Human and Environmental Sciences, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, 890-8544, Japan.
4 Department of Gastroenterology, Faculty of Medicine, Yamagata University, Yamagata, 990-9585, Japan.
5 Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA.
6 Department of Hepatic Diseases, The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, 1-7-1 Kohonodi, Ichikawa, 272-8516, Chiba, Japan. [email protected].