1. The Center for Liver Disease, Shin-Kokura Hospital
2. Department of Internal Medicine, Shin-Kokura Hospital
3. Medicine and Biosystemic Science, Kyushu University, Graduate School of Medical Science
4. Department of Internal Medicine, Japan Community Health Care Organization Kyushu Hospital
5. Department of Anatomic Pathology, Pathological Science, Graduate School of Medical Sciences, Kyushu University