Education and Degree: 1986 MD, Osaka City University Medical School, Japan. 1993 PhD Department of Internal Medicine, Osaka City University Medical School, Japan. THESIS: Polyamine metabolism in human hepatocellular carcinoma. License and Board StatusP: 1986 Physician's License in Japan, Registration No. 299716. 1993 Japanese Board of Internal Medicine, Certificate No. 5007. 1994 Japanese Board of Gastroenterology, Certificate No. 21652. 1994 Japanese Board of Gastroenterological Endoscopy, Certificate No. 930561. 1995 Japanese Board of Hepatology, Certificate No. 2762. 2007 Japanese Board of Transfusion and Cell Therapy, Certificate No.11209.