Dr. KIDA is the professor of department of gastroenterology and executive consultant of endoscopy center of Kitasato University in Sagamihara. He also went to abroad to study ERCP with professor N. Soehendra of Hamburg university in 1993-1994, and also had taught “Japanese-styled endoscopy” as a guest lecturer at Munich technical university hospital in 1999 with professor M. Classen’s invitation. His current research activities include studies of early diagnosis of biliopancreatic tumors, endoscopic therapy including EUS-guided FNA and ERC such as biliary stenting, stone removal, and per oral cholangio-pancreatoscopy etc., ERCP with enteroscopy in surgically altered patients, molecular analysis of biliary and pancreatic samples, and chemotherapy for biliopancreatic malignancies.