1. Clinical Research Center, National Hospital Organization Nagasaki Medical Center, Kubara 2-1001-1, Omura 856-8562, Japan
2. Department of Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Kubara 2-1001-1, Omura 856-8562, Japan
3. Headquarters of PBC Research in NHOSLJ, Clinical Research Center, National Hospital Organization Nagasaki Medical Center, Kubara 2-1001-1, Omura 856-8562, Japan