The division of gastroenterology plays key roles in the medical research, education and patient management in the field of esophagus, stomach, intestine, liver, biliary and pancreatic diseases. The division performs high-tech endoscopic procedures, including treatment for polyp, early gastric and colorectal cancers, endoscopic retrograde cholangiopancreaticography to treat biliary or pancreatic stone, various types of stent insertion for stricture management and endoscopic ultrasonography. The division also provides antiviral therapy for hepatitis B and C viruses, and do the best clinical practice detecting early liver cancer and providing best non-surgical treatment for liver cancer, such as radiofrequency ablation therapy or transarterial chemoembolization under the co-works with interventional radiology.