1. Autoimmune Hepatitis Study Group; Subgroup of the Intractable Hepato-Biliary Disease Study Group in Japan; Tokyo Japan
2. Imabari Saiseikai Medical-Welfare Center; Tokyo Japan
3. Department of Gastroenterology; Jikei University Graduate School of Medicine; Tokyo Japan
4. Department of Gastroenterology and Hepatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
5. Kagoshima University Graduate School of Medical and Dental Sciences; Kagoshima Japan