Division of Gastroenterology and Hepatology;
Department of Internal Medicine;
Kinki University School of Medicine;
377-2;
Ohno-Higashi;
Osaka-Sayama 589-8511;
Japan;
Department of Pathology;
Kinki University School of Medicine;
377-2;
Ohno-Higashi;
Osaka-Sayama 589- 8511;
Japan;
Department of Surgery;
Kinki University School of Medicine;
377-2;
Ohno-Higashi;
Osaka-Sayama 589-8511;
Japan;